'A gothic tale with a powerful sense of place and an eerie atmosphere' The Sunday Times, Best New Historical Fiction Picks 'A heady, entertaining brew...asks questions about guilt, superstition, desire, power, and historical inheritance' Scotland on Sunday It is 1962, and Marta Khoury, a trail-blazing marine archaeologist, has travelled to Cairnroch, a small island off the east coast of Scotland. An Arctic shipwreck containing the remains of a famous Victorian explorer has been towed back to the island at the behest of his wealthy descendants. Marta's job is to retrieve valuable artefacts from the vessel, deep beneath the freezing Scottish waters. But on her first dive, she becomes convinced she has seen a ghostly figure lurking in the wreckage. When Marta discovers objects from the vessel have inexplicably disappeared, she must work to uncover their whereabouts before her boss - who is also her ex-husband - discovers their absence. As a series of unsettling and strange occurrences