The gripping new stand-alone mystery from 'world-class crime writer' Ragnar Jónasson, soon to be a major motion picture

'Is this the best crime writer in the world today' THE TIMES

'So atmospheric, I was immediately transported to the Icelandic moors . . . I read with bated breath, my heart pounding' Sara Blædel

'So intense you can't help gripping the book as tightly as possible' THE TIMES

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They are isolated - but they are not alone . . .

When a deadly snowstorm strikes the Icelandic highlands, four friends seek shelter in a tiny, abandoned hunting lodge.

A terrifying discovery . . .

Far from offering relief, however, they find something truly shocking. Yet they dare not leave.

A haunting darkness . . .

As the night lengthens, their fears intensify. Old secrets and past tragedies spill into the light. And, slowly, these four friends begin to turn on one another.

Outside, a murderous storm rages.

But is inside even deadlier?