'Gripping debut ... Cracking' - The Times

'My favourite sort of thriller ... tons of fun' Guardian

'Chillingly atmospheric debut' - T M Logan

'A fast-paced and gripping thriller' - Clare Mackintosh

Four months into an urgent scientific research trip at a remote field station deep in Antarctica, glaciologist Rachael Beckett loses all communication with base camp.

Trapped in perpetual darkness and brutal sub-zero blizzards, she receives a single, horrifying loop on an emergency radio broadcast: a catastrophic nuclear war has broken out, and she may be the last survivor on Earth.

As a lone scientist fighting for survival in the most hostile environment on Earth, Rachael faces an grueling battle against starvation, extreme isolation, and overwhelming grief. But as the polar winter deepens, a terrifying realization takes hold: she is not as alone in the dark as she thinks