Shortlisted for the PEN Ackerley Prize 2018. This is a memoir of intense physical and personal experience, exploring how swimming with seals, gulls and orcas in the cold waters off Orkney provided Victoria Whitworth with an escape from a series of life crises and helped her to deal with intolerable loss. It is also a treasure chest of history and myth, local folklore and archaeological clues, giving us tantalising glimpses of Pictish and Viking men and women, those people lost to history, whose long-hidden secrets are sometimes yielded up by the land and sea.