'Lin Anderson is one of Scotland's national treasures' - Stuart MacBride, Sunday Times bestselling author of the Logan McRae series

'A very special new series' - Deon Meyer, international bestselling author of the Benny Griessel series

A merciless storm is freezing Orkney to its core, but a far colder threat is about to emerge.

When archaeology student Zinnie Turner buys a sealed suitcase at a lost-luggage auction, she promises her followers a live online unboxing. Instead, a cryptic phone call sends her vanishing into a brutal Orkney blizzard. When DI Erling Flett and DS Jo Green break into her flat, Zinnie is gone - and so is the luggage.

But Zinnie isn't the only one hiding secrets. Erling is already investigating rowdy teenagers causing chaos at the local ruins, while Jo tracks a vicious cyber-ring operating right under their noses at the high school. When a local youth is brutally assaulted, it's clear the town's teenagers are caught in a dangerous web.

As a total blackout plunges the island into pitch darkness, a desperate race against time begins. Erling and Jo must quickly unpack the conspiracy gripping the town's youngsters and find out how it links to Zinnie's disappearance - before the freezing dark claims another victim.

Praise for Lin Anderson:

'Lin Anderson has worked her particular magic once more' - Alexander McCall Smith, bestselling author of the No.1 Ladies' Detective Agency series

'Atmospheric, compulsive and utterly gripping. Anderson is on fire' - Helen Fields, bestselling author of the DCI Callanach series

'A thriller as smooth and distinct as a fine single malt' - Simon Toyne, bestselling author of Dark Objects

'The story is wonderful, and the characters have so much about them. Thoroughly recommend! - G.D. Wright, author of After the Storm

'For everyone missing Dr Rhona MacLeod, enter DI Erling Flett . . . will undoubtedly be a superb series' - Frances Crawford, author of A Bad, Bad Place

'An atmospheric and gripping read . . . I'm already looking forward to what comes next in the new series' - My Weekly

'A certified page-turner' - Publisher's Weekly