- Mystery 
- Survival 
- Missing Person 
- Family 
- Fear 
- Whodunit 
- Lost in the Wilderness 
- Small Town Secrets 
- Dark Past 
- Stranded in the Wilderness 
- Family Drama 
- Corporate Intrigue 
- Cabin in the Woods 
- Corporate Retreat Gone Wrong 
- Amateur Sleuth 
- Betrayal 
- Friendship 
- Search & Rescue 
- Nature 
- Wilderness Survival 
About this ebook
NOW A MAJOR MOTION PICTURE STARRING ERIC BANA
"I love Jane Harper's Australia-based mysteries." —Stephen King
Goodreads Choice Award Finalist (Mystery & Thriller, 2018) 
BookBrowse Best Books of 2018
Winner of the Prix Polar Award for Best International Novel
BookRiot’s 25 Best Suspense Books from 2018
Davitt Awards shortlist for Adult Crime Novel 2018
Dead Good Reads shortlist for Best Small Town Mystery 2018
Five women go on a hike. Only four return. Jane Harper, the New York Times bestselling author of The Dry, asks: How well do you really know the people you work with?
When five colleagues are forced to go on a corporate retreat in the wilderness, they reluctantly pick up their backpacks and start walking down the muddy path. 
But one of the women doesn’t come out of the woods. And each of her companions tells a slightly different story about what happened. 
Federal Police Agent Aaron Falk has a keen interest in the whereabouts of the missing hiker. In an investigation that takes him deep into isolated forest, Falk discovers secrets lurking in the mountains, and a tangled web of personal and professional friendship, suspicion, and betrayal among the hikers. But did that lead to murder?
“Force of Nature bristles with wit; it crackles with suspense; it radiates atmosphere. An astonishing book from an astonishing writer.”
—A.J. Finn, author of The Woman in the Window
Select praise for The Dry:
"One of the most stunning debuts I've ever read. Every word is near perfect. Read it!"
—David Baldacci, #1 New York Times bestselling author
“A breathless page-turner … Ms. Harper has made her own major mark.”
—The New York Times
Jane Harper
Jane Harper is the New York Times bestselling author of The Dry, Force of Nature, and The Lost Man. Jane previously worked as a print journalist in Australia and the UK and lives in Melbourne with her husband, daughter, and son.
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Reviews for Force of Nature
978 ratings80 reviews
What our readers think
Readers find this title to be a well-written and entertaining suspense crime novel. The characters are well-developed and the story is engaging. While some readers didn't appreciate the use of religious references, overall the book is worth the read with believable trauma and meaningful characters. There is a hope for a sequel.
- Rating: 4 out of 5 stars4/5Oct 30, 2019 Jane Harper writes wonderful novels that take place in Australia. This is the second of the Aaron Falk series. In this, five women go on a job related endurance trip to the outback. One (Alice) goes missing. Falk is a police investigator who happens to be using Alice as an informant to get information about the owners of the company she works for and so he gets involved in the search for her. The novel segues between the narrative of the 4 days the women were in the wilderness and the search taking place to find them. There is a lot going on in the book and Harper does a great job of weaving a suspenseful tale and deepening the portrayal of Falk, as we will continue to see in her subsequent books.
- Rating: 3 out of 5 stars3/5Jul 25, 2019 Kept my attention but wasn't as good as "The Dry". I'm not evenly remotely interested in hiking in Australia. Recommended.
- Rating: 5 out of 5 stars5/5Jul 25, 2019 Five women go on a hike, out of the office on a team building exercise. Bree, Beth, Jill and Lauren all come back, late and with injuries. Alice however is not with them. Where is she and what has happened. Aaron Faulk has a special interest in Alice and has to find out what really happened.This is the second book to feature Aaron Faulk. The first, The Dry was one of my favourite reads last year. This second book is as good as if not better.The story is told back and forth with the search for Alice and what happened when the five women were out hiking. I especially enjoyed the parts of the story about the women whilst they were out hiking. Without sounding cliché this book really was a page turner. I couldn't wait to see what was going to happen. I didn't guess anything at all but events do all come together and the clues were there.This book for me was very entertaining and a good solid read. If I hadn't have read the first one it wouldn't matter very much as this one can be read as a stand alone, but I would recommend both books by Jane Harper and will look for future works.
- Rating: 5 out of 5 stars5/5Jul 25, 2019 This is the 2nd book in the Aaron Falk series. Aaron Falk is a Financial Crimes Federal Police Officer who is investigating the Bailey Family Corporation for fraud. Carmen Cooper is his cohort in this book as his partner, Greg Raco, is convalescing from Harper's last book, The Dry. The corporation is holding a weekend corporate retreat for team building which consists of a hike in the wilderness in Australia. Five men and five woman are in two separate teams. The story focuses mainly on the five women whose personalities clash during the whole hiking experience. Only four women return in the end and the question remains, "What happened to Alice?" I found Jane Harper to be a very talented storyteller and she uses two different timelines in order to set down her well-paced plot. I found all the characters to be very interesting and well-developed. I was happy to find out more background information on Falk and look forward to reading more about him in the future books. I would highly recommend this book to those who love intriguing, mystery thrillers.
- Rating: 5 out of 5 stars5/5Jul 13, 2022 An excellent read. Great pace and character builds. Personally, I don't like the use of the Lord's name when I read but the book is entertaining and I couldn't put it down until I found out exactly what happened.
- Rating: 5 out of 5 stars5/5Feb 7, 2022 Good characters well written; complex stories woven together well. I recommend it
- Rating: 5 out of 5 stars5/5Jul 1, 2021 Worth the read. Pretty good dialogue and the trauma of the book is believable given the reality of human relations and conflicts.
- Rating: 5 out of 5 stars5/5May 3, 2021 This is a very well written book that pulls its readers right into the story! If you have some great stories like this one, you can publish it on Novel Star, just submit your story to hardy@novelstar.top or joye@novelstar.top
- Rating: 3 out of 5 stars3/5Apr 19, 2021 Don't use Jesus' name in vain. Liked the story.Quitting now.
- Rating: 3 out of 5 stars3/5May 30, 2025 Alice Russel goes missing on a tech retreat in the Australian wilderness. She was charged with bringing back contracts that would prove that the family business she works for is corrupt. Aaron Falk is the detective in charge of the case.
- Rating: 5 out of 5 stars5/5Jul 2, 2025 Once again, the past haunts the present. Atmospheric, suspenseful, good character development. In a nutshell, the perfect book to read on a hot, humid summer day.
- Rating: 4 out of 5 stars4/5Sep 2, 2025 Great characters and great mystery. Alice disappears during a work-related teamwork retreat in a forested area of Australia. She was part of a group of 5 women and the only one who didn't make it out. Her connection to Falk is a possible reason for her disappearance. But she's an abrasive person who it nasty to her colleagues and to those who work "beneath" her. So they have motive as well. And there may be a serial killer loose in the area, so that adds to the possibilities. This author writes her characters very well, which helps the reader understand them. I have to say, I correctly guessed the person responsible for the disappearance and/or death (don't want to spoil what happened) of Alice. As soon as that character was introduced, I had a feeling. But the path leading to the end was very well-written and had many layers. Can't wait for more from this author.
- Rating: 5 out of 5 stars5/5Mar 11, 2025 A group of women go on a hike in the bush as part of an executive team-building exercise. They emerge battered and bruised and snake-bit and down one member of the group. A search begins. Aaron Falk received a phone call from the woman the night she went missing, because she is Falk's source on financial shenanigans in the company. What happened out there and where is the missing woman? The usual Jane Harper tale unfolds - it's never what you expect.
- Rating: 4 out of 5 stars4/5Jan 6, 2025 Opening lines: "Later the four remaining women could fully agree on only two things. One: No one saw the bushland swallow up Alice Russell. And two: Alice had a mean streak so sharp it could cut you."
 Five men and five women head off into the outback of Australia for a company’s team building exercise. The men and women travel separately, have slightly different paths and different destinations. Nevertheless, the men hike over to the women’s camp on the first night for a bit of a party and some serious conversations.
 Although the men successfully arrive at their destination, the women have vanished. When they are finally found, one of their number, Alice, is gone.
 There are allegations of money laundering within the company and Alice had been working as an informant for Police Agent Aaron Falk who is brought into the case.
 But there are many more twists and turns complicating factors within the group. There are rivalries and hatreds between the men and the women.
 The area itself is known to be former haunt of a serial killer of women hiking alone. Now the murderers’s son is believed to live in the area.
 And so the search begins.
 I enjoyed the backwoods camping aspect of this story, but am skeptical that the organizing adventure/work encounter company would turn people loose in the woods, when few of them were experienced campers or hikers. Still it made an enjoyable tale and I would like to read more of this series.
- Rating: 5 out of 5 stars5/5Oct 30, 2021 So great to read a suspense crime novel that has meaningful characters, great story line and fully fleshed out cops, really hoping there is a next one !
- Rating: 4 out of 5 stars4/5Sep 20, 2024 Force of Nature by Australian author Jane Harper is the second entry in her Aaron Falk series. It is set in the mountainous forest area north-east of Melbourne as Falk and his current working partner join a search party to look for a missing woman, Alice Russell. Five women had entered the forest and only four came out.
 Alice was part of a group of women from a Melbourne tech company who were on a morale building retreat. Falk was currently investigating this family owned company for money laundering and Alice was his informant. Had Alice simply got lost or had her connection with Falk been discovered or had she run into a known serial killer’s son who was known to be in the area.
 I found this book not as interesting or intriguing as the first book in the series, the introductions of the various characters took up a good portion of the book and the author spread the POV around many of them. Also in order to hype up the story the references to a serial killer that had worked these various trails a number of years ago seemed overdone and misleading. I think I am done with this series but I do have a couple of a stand-alone mysteries by this author and they will help me to decide if I wish to go further with her.
- Rating: 4 out of 5 stars4/5Jun 25, 2023 I gave it a 4 star as I liked the mystery and what happened-- I was disappointed as I would have liked more character development of Falk -- I felt it fell flat in this book. I too found the majority of characters underwhelming.
- Rating: 3 out of 5 stars3/5May 5, 2023 Force of Nature
 3 Stars
 Federal Agent Aaron Falk and his partner investigate the disappearance of a woman involved in one of their cases. Alice Russell vanishes while hiking with four of her colleagues, all of whom had reason to dislike her. Is she simply lost or does someone she worked with have an ax to grind?
 Unfortunately, Force of Nature does not live up to the expectations set by the first book in the series. The pacing is slow and none of the characters are particularly likable, which makes it difficult to care about what happens to them.
 While the flashback scenes in The Dry contributed to character development and engaged the reader, the same technique does not have a similar effect here. Instead, they inhibit the development of the mystery and detract from the ongoing investigation.
 By the time all is revealed and the mystery is solved, the reader can do nothing but sigh in relief. This is one series that should have remained a standalone.
- Rating: 3 out of 5 stars3/5Jan 15, 2024 The second of Harper's Aaron Falk series, this didn't work quite as well for me as The Dry, mostly because there was not enough Falk in it. It's divided into two parts, which alternate. First we see Falk and his partner being called in to an investigation of a missing woman, who had been working behind the scenes to obtain records that would substantiate claims of a decades-long money-laundering scheme. She disappeared while on a team-building wilderness outing with other employees of the business under investigation. The alternate sections take us from the trail-head where the hiking/camping expedition began, giving us varying points of view of what Alice Russell and the other 4 women in her group experienced up to the point where she went missing. All of it was well set out, and the pacing was good. I just could not stand any of the women, who had neither the inclination nor the ability to co-operate in the endeavor; even when things began to go wrong, and danger was a real possibility, they could not stop bickering, finger-pointing, and shirking responsibility long enough to exercise the good sense needed under the circumstances.
- Rating: 4 out of 5 stars4/5Jan 23, 2023 Five professional women go all “Lord of the Flies” on a corporate survival retreat - fun reading, right? Actually it was. I really like Jane Harper’s style.
- Rating: 4 out of 5 stars4/5Sep 4, 2023 On a corporate retreat in the Australian wilderness, a group of five women become lost. They eventually emerge worse for the wear, but one of the five is missing, and the remaining four don't seem to have the answers. Or are they hiding something? Meanwhile, Aaron Falk, a financial federal agent who had previously enlisted the help of the missing woman in a possible company financial scam, is brought in to help when it's discovered the missing woman's last known communication was a voicemail left on his phone.
 This is #2 in Jane Harper's Aaron Falk series. I think I'm going against popular opinion here, but I think I enjoyed this one better than the first in the series. I did feel the ending was a little anticlimactic and I was hoping for a little more revealing of Aaron's past (as was the case in The Dry), but what it came down to was that I enjoyed the plot of this one better. And similar to the first book, there was just a small hint of romantic interest for Falk, which made me curious to see if it's something that might be pursued further in the next installment.
- Rating: 3 out of 5 stars3/5Aug 1, 2023 I don't have a lot of thoughts on this one, which is why it's getting a middling rating. This was such a a white bread thriller for me. Some good parts, the setting was interesting, but the bickering between characters and tangle of relationships I just didn't care for.
- Rating: 5 out of 5 stars5/5Oct 24, 2023 Jane Harper is now #2 in my top ten list of Authors whose novels are set in Australia, and I don't mean purely in the big cities, (along with Candace Fox).
 This book continues with Aaron Falk on a new case, still nursing his memories from the end of The Dry. He is written in a way that is relatable and you want him to succeed in his cases; but at the same time you don't feel as if he's an emotional wreck and just bumbling along hoping for the best.
 I did think that this novel had more of a smooth pace to it than her first, but I put this down to her getting into her stride, and also knowing her main character more.
 I'll definitely be reading more of her work.
- Rating: 4 out of 5 stars4/5Oct 13, 2023 This is the second book in the Aaron Falk series, its predecessor being the successful 'The Dry" There are a few references to the first book, but if you haven't read it yet it is completely possible to read this book on its own. Although, I highly recommend The Dry.
 This one takes place in a remote area where a group of five women go on a mini hiking expedition somewhere in the Australian wilderness, and one of their group ends up going missing.
 Aaron Falk and his partner Carmen are brought in to investigate, as they have ties to the missing women through a different ongoing investigation.
 With the chapters alternating between the women on the hike and Aaron Falk and his partner, Carmen, the tension is builds up and slowly until the last 100 or so pages where the pace picks up along with the tension.
 I enjoyed Aaron's interaction with his partner Carmen and although it wasn't quite as good as Jane Harper's first I am really looking forward to the next book in the series.
 Definitely a slower burner but the ending will make all that build up worthwhile and wont disappoint.
 A big thank you to the author Jane Harper, publishers Little, Brown Book Group UK and NetGalley for my copy of this book in exchange for an honest and independent review.
- Rating: 3 out of 5 stars3/5Jun 27, 2023 3.5*
 I liked the setting and thought that the mystery was well done. However, the shifting in time didn't work as well in this book as it did in Harper's first book, "The Dry", in my opinion. I hope that she doesn't plan to make it a feature of all her books.
- Rating: 4 out of 5 stars4/5Sep 28, 2022 Not as good as The Dry (mystery not as compelling, missing some twists and turns) but still a good read.
- Rating: 4 out of 5 stars4/5Jul 19, 2022 Aaron Falk is back, but this time he's called to the Bush to investigate the disappearance of a woman who was about to turn over a bunch of contracts critical to his criminal investigation of her employer. But now a corporate team building even in the wilderness has gone spectacularly wrong, and the woman is missing--or worse. With his capable partner Carmen, Falk becomes part of the search as the novel shifts between the present and the four days the five women were on their supposed-to-be easy trek. It is an effective story, and the characters are fairly interesting, but compared to the suspense of The Dry, in which Falk himself was a prime participant in the plot line--not just a detective, Force of Nature falls a bit short. At times, it is just a bit contrived in search of drama--but maybe I'm not an expert on what 5 women lost in the Bush might chooser to fight about. The way the whole hike is set up is messed up, too. For example, food is waiting in the base caps--but not the cylinder of gas to cook it?
 The audiobook was extremely well read by Stephen Shanahan.
- Rating: 4 out of 5 stars4/5Sep 3, 2021 Another solid entry into the Falk series. These aren't flashingly brilliant mysteries, but they're solidly built, and the pacing is good. I'll keep reading.
- Rating: 3 out of 5 stars3/5Jul 11, 2021 This is a perfectly serviceable mystery/thriller, but nothing special and not as good as her first. It doesn't drag--intertwining the two storylines helps a lot--but the resolution fizzles out.
- Rating: 3 out of 5 stars3/5Jun 1, 2021 More like three and a half stars, not bad for the ilk. A respectable diversionary read for me. The blurb is descriptive enough of the storyline.
Book preview
Force of Nature - Jane Harper
PROLOGUE
Later, the four remaining women could fully agree on only two things. One: No one saw the bushland swallow up Alice Russell. And two: Alice had a mean streak so sharp it could cut you.
* * *
The women were late to the rendezvous point.
The men’s group—clocking in at the beacon a respectable thirty-five minutes ahead of the midday target—slapped each other on the shoulders as they emerged from the tree line. A job well done. The retreat leader was waiting for the five of them, looking warm and welcoming in his official red fleece. The men threw their high-tech sleeping bags into the back of the minivan, breathing with relief as they climbed in. The van was stocked with trail mix and Thermos coffee. The men leaned past the food, reaching instead for the bag containing their surrendered mobile phones. Reunited.
It was cold outside. No change there. The pale winter sun had fully emerged only once in the past four days. At least the van was dry. The men sat back. One of them cracked a joke about women’s map-reading skills, and all of them laughed. They drank coffee and waited for their colleagues to appear. It had been three days since they’d seen them; they could wait a few more minutes.
It was an hour before smugness gave way to irritation. One by one the five men prized themselves from the soft seats and trudged up and down the dirt road. They thrust their phones toward the sky as though the extra arm’s length would capture the elusive signal. They tapped out impatient text messages that wouldn’t send to their better halves in the city. Running late. We’ve been held up. It had been a long few days, and hot showers and cold beers were waiting. And work, tomorrow.
The retreat leader stared at the trees. Finally, he unclipped his radio.
A handful of reinforcements arrived. The park rangers’ voices light as they pulled on high-vis vests. We’ll pluck ’em out of there in no time. They knew where people went wrong, and there were hours of daylight left. A few, anyway. Enough. It wouldn’t take long. They plunged into the bush at a professional pace. The men’s group bundled themselves back into the van.
The trail mix was gone, and the coffee dregs were cold and bitter by the time the searchers reemerged. The shapes of the gum trees were silhouetted against the darkening sky. Faces were set. The banter had disappeared with the light.
Inside the van, the men sat silent. If this were a boardroom crisis, they’d know what to do. A drop in the dollar, an unwanted clause in a contract, no worries at all. Out here, the bushland seemed to blur the answers. They cradled their lifeless phones like broken toys in their laps.
More words were muttered into radios. Vehicle headlights bored into the dense wall of trees, and breath formed clouds in the frigid night air. The searchers were called back in for a briefing. The men in the van couldn’t hear the details of the discussion, but they didn’t need to. The tone said it all. There were limits to what could be done after dark.
At last, the search group broke apart. A high-vis vest clambered into the front of the minivan. He’d drive the men to the park lodge. They’d have to stay the night; no one could be spared to make the three-hour trip back to Melbourne now. The men were still letting the words sink in when they heard the first cry.
High-pitched and birdlike, it was an unusual sound in the night, and every head turned as four figures crested the hill. Two seemed to be supporting a third, while a fourth tripped along unsteadily beside them. The blood on her forehead looked black from a distance.
Help us! One of them was screaming. More than one. We’re here! We need help, she needs a doctor! Please help! Thank God, thank God we found you!
The searchers were running; the men, phones abandoned on the minibus seats, panting several paces behind them.
We were lost, someone was saying. Someone else: We lost her.
It was hard to make the distinction. The women were calling, crying, their voices tumbling over one another.
Is Alice here? Did she make it? Is she safe?
In the chaos, in the night, it was impossible to say which of the four had asked after Alice’s welfare.
Later, when everything got worse, each would insist it had been her.
1
Don’t panic.
 
Federal Agent Aaron Falk, who until that moment had had no plans to do so, closed the book he’d been reading. He swapped his mobile phone to his good hand and sat up straighter in bed.
Okay.
 
Alice Russell is missing.
 The woman on the other end said the name quietly. Apparently.
 
Missing how?
 Falk put his book aside. 
Legitimately. Not just ignoring our calls this time.
 
Falk heard his partner sigh down the line. Carmen Cooper sounded more stressed than he’d heard her in the three months they’d been working together, and that was saying a lot.
She’s lost in the Giralang Ranges somewhere,
 Carmen went on. 
Giralang?
 
Yeah, out in the east?
 
No, I know where it is,
 he said. I was thinking more of the reputation.
 
The Martin Kovac stuff? It doesn’t sound anything like that, thank God.
 
You’d hope not. That’d have to be twenty years ago now, wouldn’t it?
 
Going on for twenty-five, I think.
 
Some things would always linger, though. Falk had been barely a teenager when the Giralang Ranges had dominated the evening news for the first time. Then three more times over the next two years. Each time, images of search teams tramping through overgrown bushland with sniffer dogs straining at their leads had been projected into living rooms around the state. They’d found most of the bodies, eventually.
What was she doing all the way out there?
 he asked. 
Corporate retreat.
 
Are you joking?
 
Unfortunately not,
 Carmen said. Turn on the TV; it’s on the news. They’ve called out a search crew.
 
Hang on.
 Falk climbed out of bed and pulled on a T-shirt above his boxers. The night air was chilly. He padded through to his living room and turned to a twenty-four-hour news channel. The anchor was talking about the day in parliament. 
It’s nothing. Just work. Go back to sleep,
 Falk heard Carmen murmur in his ear, and realized she was talking to someone at the other end. He’d automatically pictured her in their shared office, squeezed behind the desk that had been shoehorned in next to his twelve weeks earlier. They’d been working closely since, quite literally. When Carmen stretched, her feet knocked his chair legs. Falk checked the clock. It was after 10:00 P.M. on a Sunday night; of course she would be at home. 
See it yet?
 Carmen said to him, whispering now for the benefit of whoever she was with. Her fiancé, Falk assumed. 
Not yet.
 Falk didn’t need to lower his own voice. Wait—
 The ticker tape scrolled across the screen. Here it is.
 
SEARCH TO RESUME AT DAWN IN GIRALANG RANGES FOR LOST MELBOURNE HIKER ALICE RUSSELL, 45.
"Melbourne hiker?" Falk asked.
I know.
 
Since when has Alice—
 He stopped. He was picturing Alice’s shoes. High. Pointy. 
I know. The bulletin said it was some sort of team-building exercise. She was part of a group sent out for a few days and—
 
A few days? How long has she actually been missing?
 
I’m not sure. I think since last night.
 
She called me,
 Falk said. 
There was a silence at the other end of the line. Who did? Alice?
 
Yes.
 
When?
 
Last night.
 Falk pulled his cell phone away and scrolled through his missed calls. He put it back to his ear. You still there? Early this morning, actually, around four thirty. I didn’t hear it. Only saw the voice mail when I woke up.
 
Another silence. What did she say?
 
Nothing.
 
At all?
 
There was no one there. I thought it was a pocket dial.
 
The TV bulletin put up a recent picture of Alice Russell. It looked like it had been taken at a party. Her blond hair had been pinned in a complicated style, and she was wearing a silvery dress that showed off the hours she spent in the gym. She looked a good five years younger than her true age, maybe more. And she was smiling at the camera in a way she never had for Falk and Carmen.
I tried to call her back when I woke up; probably around six thirty,
 Falk said, still watching the screen. It rang out.
 
The TV cut to an aerial shot of the Giralang Ranges. Hills and valleys rolled out to the horizon, a rippling green ocean under the weak winter light.
SEARCH TO RESUME AT DAWN …
Carmen was quiet. Falk could hear her breathing. On screen, the ranges looked big. Enormous, in fact. The thick carpet of treetops appeared completely impenetrable from the camera’s vantage point.
Let me listen to the message again,
 he said. I’ll call you back.
 
Okay.
 The line went dead. 
Falk sat on his couch in the semi-dark, the blue light of the TV screen flickering. He hadn’t drawn his curtains, and beyond the small balcony he could see the glow of the Melbourne skyline. The warning light on top of the Eureka Tower flashed, regular and red.
SEARCH TO RESUME AT DAWN IN GIRALANG …
He turned down the TV and dialed his voice mail. Call received at 4:26 A.M. from Alice Russell’s cell phone.
At first Falk could hear nothing, and he pressed his phone harder against his ear. Muffled static for five seconds. Ten. He kept listening, right to the end this time. The white noise lurched in waves; it sounded like being underwater. There was a muted hum that might have been someone talking. Then, out of nowhere, a voice broke through. Falk jerked the phone away from his ear and stared at it. The voice had been so faint he wondered if he’d imagined it.
Slowly, he tapped the screen. He closed his eyes in his quiet flat and played the message one more time. Nothing, nothing, and then, in the darkness, a faraway voice spoke two words in his ear.
"—hurt her…"
2
Dawn hadn’t yet broken when Carmen pulled up outside Falk’s flat. He was already waiting on the pavement, his backpack on the ground. His hiking boots felt stiff from lack of use.
Let’s hear the message,
 she said as he climbed in. She had the driver’s seat pushed back. Carmen was one of the few women Falk had met who was tall enough to look him in the eye when they stood face-to-face. 
Falk put his phone on speaker and pressed a button. Static filled the car. Five, ten seconds of nothing, then the two words emerged, tinny and thin. A few more muffled seconds, and the call cut out.
Carmen frowned. Once more.
 
She closed her eyes, and Falk watched her face as she listened. At thirty-eight, Carmen outranked him by only six months both in age and experience, but it was the first time their paths in the Federal Police had crossed. She was new to the financial investigation unit in Melbourne, having moved down from Sydney. Falk couldn’t work out if she regretted it. Carmen opened her eyes. Under the orange glow of the streetlight, her skin and hair both looked a shade darker than usual.
‘Hurt her,’
 she said. 
That’s what it sounds like to me.
 
Could you hear something else right at the end?
 
Falk turned up the volume to the maximum and hit Replay. He found himself holding his breath as he strained to hear.
There,
 Carmen said. "Is that someone saying Alice?" 
They listened once more, and this time Falk caught the faint inflection in the muffled noise, a sibilant hiss.
I don’t know,
 he said. It might be static.
 
Carmen started the engine. It roared loudly in the predawn. She pulled away and onto the road before she spoke again.
How confident do you feel that that’s Alice’s voice?
 
Falk tried to recall the timbre of Alice Russell’s tone. Her voice was fairly distinctive. It was often clipped. Always decisive. "There’s nothing to say that it’s not her. But it’s hard to hear."
Very hard. I’m not sure I could even swear that was a woman.
 
No.
 
In the side mirror, the Melbourne skyline was growing smaller. Ahead, in the east, the sky was turning from black to navy.
I know Alice is a pain in the arse,
 he said. But I really hope we haven’t landed her in the shit.
 
Me too.
 Carmen’s engagement ring caught the light as she turned the wheel to join the highway. What did the state cop have to say? What was his name?
 
King.
 
Falk had hung up from Alice Russell’s voice mail the previous night and immediately dialed the state police. It had been half an hour before the senior sergeant leading the search had called back.
Sorry.
 Senior Sergeant King had sounded tired. Had to get myself to a landline. The weather’s stuffing up the reception worse than usual. Tell me about this voice mail.
 
He’d listened patiently while Falk spoke.
Right,
 King said when he’d finished. Look, we’ve run a check on her phone records.
 
Okay.
 
What did you say your relationship was with her?
 
Professional,
 Falk said. Confidential. She was helping me and my partner with something.
 
And what’s his name?
 
Her. Carmen Cooper.
 
Falk could hear the rustle of paper as the man wrote it down.
Were either of you expecting her to call?
 
Falk hesitated. Not specifically.
 
Are you particularly skilled at bushcraft?
 
Falk had looked down at his left hand. The skin was still pink and strangely smooth in patches where the burns hadn’t healed quite as well. No.
 
Is your partner?
 
I don’t think so.
 Falk realized he didn’t really know. 
There was a pause. According to the phone company, early this morning Alice Russell attempted to get through to two numbers,
 King said. Triple zero emergency line and you. Can you think of a reason why that would be?
 
It was Falk’s turn to pause. He could hear the sergeant breathing down the phone.
Hurt her.
I think we’d better come up there,
 Falk said. Speak in person.
 
I think that’d be a wise move, mate. Bring your phone.
 
DAY 4: SUNDAY MORNING
The woman could see her own fear reflected in the three faces staring back at her. Her heartbeat thumped, and she could hear the others’ rapid breathing. Overhead, the pocket of sky carved out by the trees was a dull gray. The wind shook the branches, sending a shower of water down on the group below. No one flinched. Behind them, the rotten wood of the cabin groaned and settled.
We have to get out of here. Now,
 the woman said. 
The pair on her left nodded immediately, united for once by their panic, their eyes wide and dark. On her right, the briefest hesitation, then a third nod.
What about—
 
What about what?
 
What about Alice?
 
An awful hush. The only sound was the creak and rustle as the trees watched down over their tight circle of four.
Alice brought this on herself.
 
3
When Falk and Carmen stopped after a couple of hours, the sky was fully light and the city lay far behind them. They stood by the side of the road and stretched as the clouds threw shifting shadows across the paddocks. The houses and buildings were few and far between. A truck carrying farming supplies roared past, the first vehicle they had seen for thirty kilometers. The noise startled a flock of galahs, sending them scattering from a nearby tree, flapping and screaming.
Let’s keep moving,
 Falk said. He took the keys from Carmen and climbed behind the wheel of her battered maroon sedan. He started the engine. It felt instantly familiar. 
I used to have a car like this.
 
But you had the sense to get rid of it?
 Carmen settled into the passenger’s seat. 
Not by choice. It got damaged earlier this year, back in my hometown. A welcome-home gesture from a couple of the locals.
 
She glanced over, a tiny smile. Oh, yeah. I heard about that. Damaged is one way to put it, I suppose.
 
Falk ran his hand over the steering wheel with a pang of regret. His new car was okay, but it wasn’t the same.
This is Jamie’s car, anyway,
 Carmen said as he pulled away. Better for longer distances than mine.
 
Right. How is Jamie?
 
Fine. Same as usual.
 
Falk didn’t really know what the usual was. He had met Carmen’s fiancé only once. A muscular guy in jeans and a T-shirt, Jamie worked in marketing for a sports nutrition drink company. He’d shaken Falk’s hand and given him a bottle of something blue and fizzy that promised to enhance his performance. The man’s smile seemed genuine, but there was a touch of something else in it as he took in Falk’s tall thin frame, his pale skin, his white-blond hair, and his burned hand. If Falk had had to guess, he’d have said it was mild relief.
Falk’s cell phone beeped from the center console. He took his eyes off the empty road to glance at the screen and handed it to Carmen. That sergeant’s sent an email through.
 
Carmen opened the message. All right, he says there were two groups on the retreat. One men’s group, one women’s, both doing separate routes. He’s sent the names of the women in Alice Russell’s party.
 
Both groups from BaileyTennants?
 
Looks like it.
 Carmen took out her own phone and opened the BaileyTennants website. Falk could see the boutique accountancy firm’s black-and-silver lettering on the screen out of the corner of his eye. 
Okay. Breanna McKenzie and Bethany McKenzie,
 she read out loud from his phone. Breanna is Alice’s assistant, isn’t she?
 Carmen tapped her screen. Yep, here she is. God, she looks like she could advertise vitamins.
 
She held out her phone, and Falk glanced at the beaming staff headshot of a girl in her midtwenties. He could see what Carmen meant. Even in unflattering office light, Breanna McKenzie had the healthy glow of someone who jogged each morning, practiced yoga with intent, and deep-conditioned her glossy black ponytail religiously every Sunday.
Carmen took her phone back and tapped. Nothing’s coming up about the other one. Bethany. Sisters, do you think?
 
Possibly.
 Perhaps twins, even, Falk thought. Breanna and Bethany. Bree ’n’ Beth. He rolled the sounds over his tongue. They sounded like a pair. 
We can find out what the deal is with her,
 Carmen said. Next is Lauren Shaw.
 
We’ve come across her, haven’t we?
 Falk asked. Middle management something?
 
Yeah, she’s—Christ, that’s right, strategic head of forward planning.
 Carmen held out her phone again. Whatever that means.
 
Whatever it was, Lauren’s thin face gave nothing away. It was hard to estimate her age, but Falk guessed mid- to late forties. Her hair was a medium shade of brown, and her light-gray eyes gazed straight into the camera, expression as neutral as a passport photo.
Carmen turned back to the list of names. Huh.
 
What?
 
It says Jill Bailey was out there with them.
 
Really?
 Falk kept his eyes on the road, but the bead of worry that had been lodged in his chest since the previous night pulsed and grew. 
Carmen didn’t bother pulling up Jill’s photo. They were both familiar with the chairwoman’s heavyset features. She was turning fifty that year and, despite her expensive clothes and haircuts, looked every day of it.
Jill Bailey,
 Carmen said, scrolling further through the sergeant’s message. Her thumb stilled. Shit. And her brother was in the men’s group.
 
Are you sure?
 
Yep, Daniel Bailey, chief executive. It’s here in black and white.
 
I don’t like that at all,
 he said. 
No. I don’t like any of it.
 
Carmen clicked her fingernails lightly on the phone as she thought. All right. We don’t know enough to form any conclusions,
 she said eventually. That voice mail is completely without context. In every sense—realistically, statistically—it’s most likely that Alice Russell has come off a trail by mistake and got lost.
 
Yeah, that is most likely,
 Falk said. He thought neither of them sounded convinced. 
They drove on, the radio stations dwindling to nothing as the scenery whipped by. Carmen fiddled with the knob until she found a crackly AM wavelength. The news on the hour faded in and out. The Melbourne hiker was still missing. The road gently swung to the north, and suddenly Falk could see the hills of the Giralang Ranges on the horizon.
Have you ever been out here?
 he said, and Carmen shook her head. 
No. You?
 
No.
 He hadn’t, but he had grown up in a place not unlike it. Isolated terrain, where trees grew thick and dense on land that was reluctant to let anything escape. 
The history around here puts me off,
 Carmen went on. I know it’s silly, but…
 She shrugged. 
Whatever happened to Martin Kovac in the end?
 Falk asked. Is he still locked up?
 
I’m not sure.
 Carmen tapped at her phone screen again. No. He’s dead. Died in jail three years ago, aged sixty-two. Actually, that rings a bell, now I think about it. He got into a fight with an inmate, hit his head on the ground, and didn’t wake up again, it says here. It’s hard to feel too sorry about that.
 
Falk agreed. The first body had been that of a twentysomething-year-old trainee teacher from Melbourne, enjoying a weekend of fresh air in the ranges. A group of campers had found her, days too late. The zipper on her shorts had been wrenched apart, and her pack with hiking supplies was missing. She was barefoot, and her shoelaces were tight around her neck.
It had taken two more women’s bodies, and another reported missing, over the next three years before transient laborer Martin Kovac’s name was first mentioned in connection with the murders. By then the damage was well and truly done. A long and lasting shadow had been cast over the tranquil Giralang Ranges, and Falk was part of a whole generation that had grown up feeling a shiver when they heard the name.
Kovac died without confessing to attacking those three women, apparently,
 Carmen said, reading from her phone. Or that fourth one who was never found. Sarah Sondenberg. That was a sad one. She was only eighteen. Do you remember her parents doing those appeals on TV?
 
Falk did. Two decades on and he could still picture the desperation in her parents’ eyes.
Carmen tried scrolling down, then gave a sigh. Sorry, it’s freezing up. The signal’s going.
 
Falk wasn’t surprised. The trees along the side of the road cast shadows that blocked the morning light. I guess we’re heading out of range.
 
They didn’t speak again until they left the main road. Carmen pulled out the map and navigated as the track narrowed and the hills loomed large in the windshield. They passed a short row of shops selling postcards and hiking equipment. It was bookended by a small supermarket and a lonely service station.
Falk checked the fuel gauge and put on the indicator. They both got out while he filled up, yawning, the early start beginning to catch up with them. It felt colder here, and the air had a bite. He left Carmen stretching her back with a groan and went in to pay.
The man behind the counter was wearing a beanie and week-old stubble. He stood up a little straighter as Falk approached.
Headed into the park?
 He spoke with the haste of a bloke starved of conversation. 
We are.
 
Looking for that missing woman?
 
Falk blinked. Yes, actually.
 
Had heaps of people come through for her. They called in the searchers. Must’ve had twenty people fill up yesterday. Rush hour all day. No better today.
 He shook his head in disbelief. 
Falk discreetly glanced around. Their car was the only one on the forecourt. There were no other customers in the shop.
Hopefully they’ll pick her up quickly,
 the man went on. "Bad business, that, when someone goes missing. Bad for business as well. Scares people off. Too much of a reminder, I reckon." He didn’t elaborate. There was no need to mention Kovac, Falk supposed, not around there. 
Have you heard any update?
 Falk asked. 
Nah. Don’t think they’ve had any luck, though, because I haven’t seen them come out. And I get them both ways. In and out. Nearest servo’s over fifty kilometers away. Farther if you go north. Everyone fills up here. Just in case, you know? Something about being in there makes them want to be on the safe side.
 He shrugged. Silver lining for us, I suppose.
 
You lived out here long?
 
Long enough.
 
As Falk handed over his credit card, he noticed the small red light of a security camera behind the counter.
Are there cameras on the pumps?
 Falk asked, and the guy followed his gaze outside. Carmen was leaning against the car, her eyes closed and her face tilted upward. 
Yeah, course.
 The guy’s eyes lingered a beat longer than necessary before he dragged them back. No choice. I’m on me own here most of the time. Can’t risk the drive-offs.
 
Did the missing woman come through with her group on their way in?
 Falk asked. 
Yep. On Thursday. The cops already took a copy of the recording.
 
Falk pulled out his ID. Any chance of another one?
 
The guy looked at it, then shrugged. Give me a minute.
 
He disappeared into a back office. Falk looked out through the glass front doors while he waited. Beyond the forecourt, he could see nothing but a wall of green. The hills hid the sky. He suddenly felt very surrounded. He jumped as the man reemerged with a memory stick in his hand.
Past seven days,
 the guy said, handing it over. 
Thanks, mate. That’s appreciated.
 
No worries, hope it helps. You wouldn’t want to be lost out there for too long. It’s the panic that gets you. Everything starts to look the same after a few days, makes it hard to trust what you’re seeing.
 He glanced outside. Drives ’em wild.
 
DAY 1: THURSDAY AFTERNOON
The windshield was lightly spotting with rain as the minivan drew to a halt. The driver killed the engine and swiveled around in his seat.
This is it, guys.
 
Nine heads turned to the windows.
I’m only getting out if we go left, not right,
 a male voice called from the back seat, and the others laughed. 
To the left, a guest lodge sat snug and warm, its wooden walls standing strong against the chill. Light spilled out of the windows, and beyond, a neat row of accommodation cabins beckoned.
To the right lay a muddy track, marked with a weather-beaten sign. Gum trees knitted overhead to form a rough archway, and the path meandered drunkenly before careering sharply into the bushland and disappearing.
Sorry, mate, it’s a right turn for everyone today.
 The driver swung open the minivan door, sending in an icy blast. One by one, the passengers began to move. 
Bree McKenzie undid her seat belt and climbed out, dodging a large puddle at the last second. She turned with a warning, but Alice was already stepping down. The woman’s blond hair blew across her face, blinding her as one expensive boot plunged into the water.
Shit.
 Alice swept her hair behind her ears and looked down. Good start.
 
Sorry,
 Bree said automatically. Has it soaked through?
 
Alice examined her boot. No. I think I got away with it.
 A beat, then she smiled and moved on. Bree gave a silent sigh of relief. 
She shivered, zipping her jacket right up to her neck. The air was crisp with the scent of damp eucalyptus, and as she looked around she could see the gravel parking lot was mostly empty. Off season, she guessed. She walked to the back of the van where the backpacks were being unloaded. They looked heavier than she
