Investigator Cal McGill uses his knowledge of tides, winds and currents to solve mysteries no-one else can. Five years ago, fourteen-year-old Max Wheeler disappeared from a remote Scottish island. None of the six police and private investigations since have shed any light on what happened. Unable to let go, Max's family call in Cal McGill - known as 'The Sea Detective' - hoping he'll force the sea to give up its secrets. Yet Cal finds he is an outsider to a broken family, and an unwelcome stranger in a village which has endured years of suspicion. Cal knows that a violent storm is approaching. But what he doesn't know is that when it cuts off the island, a killer will see their chance...'A compelling protagonist' The Times Literary Supplement 'Infinitely better written than the majority of its competitors' Herald 'Promises to be a fine series of detective novels' Sunday Times, Crime Book of the Month