Three ordinary people risk everything for a chance at redemption in this audacious, utterly gripping novel of catastrophe and survival at the end of the world, from the acclaimed author of The Chalk Man.
An overturned bus full of students.
All of them are trapped.

A stranded cable car full of strangers.
One of them is dead.

An isolated chalet full of friends.
Soon they'll be enemies.
Outside, a snowstorm rages.
Inside each group, a killer lurks.
But that's not their only problem.
Why is no rescue coming?
What are they trying to escape from?
And who are the terrifying Whistlers?
A locked-room mystery.
A dystopian thriller.
A nail-shredding horror.
One terrifying conclusion . . .