The latest chilling thriller from the legendary, international bestselling author.PRAISE FOR YRSA SIGURDARDOTTIR'The undisputed Queen of Icelandic noir' Simon Kernick'As confident a writer as ever' Sunday Times'A generator of fear as adroit as Stephen King' Independent'Sigurdardottir makes the hairs on the back of your neck stand up' The Times'Twisty, twisted and scary as hell' C. J. TudorJust how low do people sink to get away with murder?A human skull unearthed on the outskirts of Reykjavik.A neighbourhood dispute turned deadly.A daughter, trapped at sea, looking for answers.What police officers Tyr and Karo don't know is that these events are all linked through a terrible tragedy, many years ago, when a trawler caught fire on the waves, the crew trapped inside.The answers lie buried at the bottom of the cold Icelandic Sea.