Praise for Warning Signs:
“Tracy Sierra combines the forces of nature with the evil that men do to write an extraordinary double-whammy of a novel.”
—Linwood Barclay, New York Times bestselling author of Whistle
“Wow. . . What a novel! Warning Signs ticks every box for attention-commanding thriller: The plot is unstoppable, the characters rich and complex—with breathtaking psychological insights aplenty—and the author’s voice is pitch perfect. And talk about a setting! Buy it, lock your doors and shut off your cell phone. Don’t worry, you won’t be incommunicado for very long. Bravo!”
—Jeffery Deaver, New York Times bestselling author of the Colter Shaw Tracker novels
“Warning Signs is an atmospheric, pulse-pounding journey into the wilderness as well as into the human heart. The perfect, wintry thriller!”
—Ana Reyes, New York Times bestselling author of The House in the Pines
“A chilling gothic thriller. Set in an eerie, icy landscape, Warning Signs proves that Tracy Sierra is a master of edge-of-your-seat suspense.”
—Flynn Berry, New York Times bestselling author of Northern Spy
“[Warning Signs] is both enthralling and thought-provoking, liable to keep the reader up all night for a single-sitting read or to inspire nightmares. . . With its triple-punch of terrors natural, human, and unknown, Sierra’s sophomore novel is truly and profoundly frightening. . . Discomfiting, chilling, and unforgettable.”
—Shelf Awareness (starred review)
“The story snowballs, resulting in an adrenaline-fueled sprint during which machismo trumps reason and amplifies danger at every turn. A pulse-pounding, heart-rending thrill ride.”
—Kirkus
“Sierra’s vivid setting, well-shaded characters, and knack for suspense keep the pages turning. . . This is an icy delight.”
—Publishers Weekly
“Sierra’s taut thriller provides a good blend of wild and human threats, and Zach is a believably capable protagonist to guide this deadly outing.”
—Library Journal
“As breathtaking as an avalanche, Tracy Sierra’s Warning Signs is a perfect mix of inner torment, warped masculinity, evil suspense, and the sublime. It kept me up reading late into the night.”
—Sierra Greer, award-winning author of Annie Bot
“Warning Signs continues Tracy Sierra’s trajectory as a rising star. A chilling story with emotional depth and an ending that will take your breath away. Fair warning to readers: once you start reading, you won’t want to stop.”
—Alex Finlay, bestselling author of Parents Weekend
‘“Wow, Tracy Sierra has done it again — knife-edge tension and a perfect denouement. Absolutely outstanding”
—Andrea Mara, international bestselling author of Someone in the Attic
“Warning Signs is a riveting survival thriller about a boy fighting for his life on all fronts, set in the stark, dangerous wildness of the Colorado backcountry. Sierra’s ability to seamlessly fuse a constant thrum of unseen, impending doom, with an aching tenderness that will break your heart is unparalleled. Sly, resplendent, and brilliantly fierce—what a gift it is to have Sierra’s singular talent in the world.”
—Ashley Tate, internationally bestselling author of Twenty-Seven Minutes
“Warning Signs is a truly unputdownable novel. Full of suspense and beautifully written, the book explores themes of wilderness, violence, and family ties with unusual subtlety. An enthralling book in every way.”
—Bruce Holsinger, bestselling author of Culpability
“A taut survival thriller with heart, Warning Signs is an incisive exploration of mother-son relationships, the examples we set for our sons, and greed—all wrapped up in a terrifying, high-altitude adventure novel. Sierra cranks the tension up, up, up before launching us into a pulse-pounding life-or-death chase. I inhaled this book in one sitting.”
—K.T. Nguyen, award-winning author of You Know What You Did
“In Warning Signs, the raw force of nature and the darkness of humanity collide in a harrowing tale of a boy’s struggle for survival. Sierra’s sharp, evocative writing builds a tension so taut that it had me holding my breath. A brilliant follow-up to her incredible debut!”
—Monika Kim, award-winning author of The Eyes Are the Best Part
“Fans of Tracy Sierra’s riveting debut, Nightwatching, will be equally enthralled with Warning Signs, another expertly crafted, life-or-death thriller about fighting for survival, this time against mother nature and the sins of the father.”
—Vanessa Lillie, bestselling author of The Bone Thief
“An isolated setting and a pulse-pounding fight for survival combine to make Warning Signs a truly stunning novel.”
—Sian Gilbert, author of I Did Warn Her
“Warning Signs is the best thriller I have read in a long, long time. It is atmospheric, full of heart and so nail-bitingly suspenseful that it had me at the edge of my seat from page one. I devoured it as fast as I could.”
—Hildur Knútsdóttir, author of The Night Guest
“Oh my heart! Nobody does tension and terror like Tracy Sierra. A masterclass in group dynamics and atmospheric writing, with a young protagonist whose every step you will cheer in this fight for survival.”
—Holly Seddon, international bestselling author of 59 Minutes
“The mountains have a way of showing our true nature. In Warning Signs, Tracy Sierra expertly exposes the layers of a relationship between a father and son. While leading a reader across the line between wonder and terror, she asks the most important question—what should we fear? Gripping, tense, and full of beauty, this novel will make your heart pound.”
—Claire Cameron, bestselling author of How to Survive a Bear Attack
Praise for Nightwatching:
“Phenomenal. . . thrilling.”
—Jimmy Fallon
“[Nightwatching] guarantees you will stay up, as I did, way past bedtime, tearing through pages to find out what happens, or you’ll be too petrified to sleep, or maybe both.”
—Mary Louise Kelly, NPR
“Horror meets thriller in this pulse-pounding locked-room suspense, playing off the dread (and claustrophobia) of being trapped in your home with an intruder. . . Sierra manages to integrate complex ideas about perception, trauma, guilt, and women’s autonomy…without once loosening her grip on the reader’s nerves.”
—Elle
“How many of us have had the experience of hearing an old house creak in the night and wondering if it was something more? That uneasiness becomes terror in Sierra’s riveting debut. . . . What happens next falls between horror and suspense, landing with almost unbearable intensity. . . Nightwatching [is] among the best debuts I’ve read in years.”
—LA Times
“[Nightwatching] truly terrified me. . . this was literally catnip for my intrusive thoughts. My heart never stopped racing.”
—USA Today
“The reader is thrust into a scenario of unadulterated fear in Tracy Sierra’s stellar debut. . . To describe this novel as nightmarish contrasts with the vividness of this night, as Sierra escorts the reader beyond metaphor: Is it a nightmare if it’s real? Nightwatching is a terrifying cat-and-mouse thriller in which the creak on the stairs is an overture to a fight for survival.”
—Washington Post
“Nightwatching is one of those reads I devour: a thrilling mystery with an actual message and larger societal commentary contained within. . . Sierra’s plot is propulsive and is literally heart-pounding. . . Along the way, she raises important questions about who gets to be a victim and how hard it is for women to be believed. It will enrage you, it will scare you, and it will definitely make you want to discuss it.”
—Glamour
“Nightwatching grows in stature and becomes not just a nerve-shredding page-turner but also an ingenious guessing game and an absorbing account of a woman’s struggle to make her voice heard.”
—Minneapolis StarTribune
“The extreme tension . . . triumphs in a gripping and convincing finale. Not for the faint-hearted.”
—The Daily Mail
“So terrifying that it can easily be considered horror-adjacent. . . The intense plunge into the main character’s traumatic experience feels incredibly real and immediate, and the suspense doesn’t let up until the last moments of the novel.”
—BookPage
“Tracy Sierra has done the impossible: changed my mind about the home invasion thriller. . . Gripping.”
—CrimeReads
“This is an intelligent, excoriating and almost unbearably tense look at what can happen when men choose to assume that a woman is hysterical rather than taking her seriously.”
—The Guardian (London)
“The most gripping thriller I have ever read. . . I was astounded at how Sierra kept up the pace in this high-wire act of a thriller, but she doesn’t put a single foot wrong.”
—Scary Mommy
“Nightwatching is just as much a psychological thriller as it is a horror story. Powerful and absorbing, it was not easy to put this book down until I finished it. In my opinion, that is the mark of an excellent story. Highly recommended.”
—Fresh Fiction
“Outstanding. . . As grippingly suspenseful as the plot is, Sierra’s first outing boasts other strengths just as noteworthy, from its transportingly eerie setting to its indelible main character, a petite, prototypical ‘good girl’ pushed to the brink by years of being underestimated, patronized, and disbelieved by men with power. The icing on the cake is the splendid ending, which feels both surprising and inevitable.”
—Publishers Weekly (starred review)
“Straddling the line between psychological thriller and domestic horror, Sierra’s auspicious debut immediately plunges readers headlong into its unnamed protagonist’s waking nightmare. . . tense, emotionally resonant . . . Well-timed flashbacks add context and poignancy. Fiercely feminist and viscerally terrifying.”
—Kirkus (starred review)
“I barely breathed while reading this incredibly tense, chilling thriller.”
—Good Housekeeping (UK)
“Nightwatching is like nothing I’ve read before. I wolfed it down in two sittings; it’s amazing.”
—Lisa Jewell, #1 New York Times bestselling author of None of This is True
“Nightmarish—you won’t be able to look away.”
—Shari Lapena, New York Times bestselling author of The Couple Next Door
“If Stephen King and Dean Koontz co-wrote a thriller, the result would be a lot like Nightwatching. Eerily atmospheric, pulse-pounding and unputdownable, this book will keep you up at night.”
—Sarah Pekkanen, New York Times bestselling author of Gone Tonight
“Very few books are as sharp, clever, and utterly terrifying as Nightwatching. Read at your own risk.”
—Chris Whitaker, New York Times bestselling author of We Begin at the End
“I loved Nightwatching. It is the most gripping thriller I have ever read.”
—Gillian McAllister, New York Times bestselling author of Wrong Place Wrong Time
“I am trying to think of a book that has grabbed me by the throat more quickly. None comes to mind.”
—Linwood Barclay, New York Times bestselling author of The Lie Maker
“The most gripping psychological thriller I’ve ever read. Heart-thumping and mesmerizing, a masterclass in tension and terror, it’s also a creative, thoughtful portrait of maternal fear and love–a must read.”
—Ashley Audrain, New York Times bestselling author of The Push
“Nightwatching is an intense and claustrophobic thriller–it’s terrifying and unputdownable.”
—Karin Slaughter, New York Times and #1 international bestselling author of After That Night
“Few novels have affected me like this one. Nightwatching is acutely frightening and beautifully written, as tender as it is terrifying. I can’t remember rooting for a character quite so hard!”
—Abigail Dean, New York Times bestselling author of Girl A
“Tracy Sierra is an impressive new talent. Nightwatching is riveting, by turns a chilling account of a horrifying ordeal and a whip-smart snapshot of marriage, motherhood, and the female experience in a man’s world. Psychological terror at its finest.”
—Gilly Macmillan, New York Times bestselling author of The Manor House
“Breathtakingly superb on every level. A proper tour de force that delivers the highest possible grip factor from first word to last, and a more satisfying resolution than I dared to hope for.”
—Sophie Hannah, New York Times bestselling author of The Couple at the Table
“Nightwatching is at once a terrifying descent into my deepest maternal fears, a blistering social critique, and an elegiac portrait of what it means—and what it takes—to endure. One of the most haunting, gripping novels I’ve read in a long time.”
—Katie Gutierrez, national bestselling author of More Than You’ll Ever Know
“So tense, so thought-provoking.The definition of ‘can’t put down.’”
—Araminta Hall, author of Imperfect Women
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