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Warning Signs

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Warning Signs

By: Tracy Sierra
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About this listen

Brought to you by Penguin.

You can look for danger. And danger can look for you.

There’s something out there in the darkness.
By morning, bones lie in the snow, picked clean.

Zach knows the moods of the mountains – his mother taught him before she was gone. His father and the other men on the ski weekend think they know better though.

Drinking and boasting, they laugh in the face of the icy conditions.

But Zach understands what danger looks like. Can he survive the wilderness, and all the monsters within it?

© Tracy Sierra 2026 (P) Penguin Audio 2026

Psychological Suspense Thriller & Suspense

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Critic reviews

Wow, Tracy Sierra has done it again – knife-edge tension and a perfect denouement. Absolutely outstanding (Andrea Mara)
Sierra's sharp, evocative writing builds a tension so taut that it had me holding my breath (Monika Kim)
Tracy Sierra combines the forces of nature with the evil that men do to write an extraordinary double-whammy of a novel (Linwood Barclay)
What a novel! Warning Signs ticks every box for an attention-commanding thriller. Buy it, lock your doors and shut off your phone (Jeffery Deaver)
Sierra’s ability to seamlessly fuse a constant thrum of unseen, impending doom, with an aching tenderness that will break your heart is unparalleled (Ashley Tate)
An isolated setting and a pulse-pounding fight for survival combine to make Warning Signs a truly stunning novel (Sian Gilbert)
The best thriller I have read in a long, long time...atmospheric, full of heart and so nail-bitingly suspenseful that it had me at the edge of my seat from page one (Hildur Knútsdóttir)
A taut survival thriller with heart . . . Sierra cranks the tension up, up, up before launching us into a pulse-pounding life-or-death chase (K.T. Nguyen)
As breathtaking as an avalanche, Tracy Sierra’s Warning Signs is a perfect mix of inner torment, warped masculinity, evil suspense, and the sublime (Sierra Greer)
Terrifying, chilling and emotionally visceral...I found myself holding my breath (Nikki Smith)
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