From the author of the acclaimed novels The House Between Tides and Beyond the Wild River, a rich, atmospheric tale set on the sea-lashed coast of west Scotland, in which the lives of a ninth-century Norsewoman, a nineteenth-century woman, and a twenty-first-century archaeologist weave together after a body is discovered in the dunes. Libby Snow has always felt the pull of Ullaness-a lush Scottish island enshrouded in myth and deeply important to her family. Her great-great-grandmother Ellen was obsessed with the strange legend of Ulla, a Viking maiden who washed up on shore with the nearly lifeless body of her husband-and who inspired countless epic poems and the island's name. Central to the mystery is an ornate chalice and Libby, an archaeologist, finally has permission to excavate the site where Ulla is believed to have lived. But what Libby finds in the ancient dunes is a body from the Victorian era, clearly murdered . . . and potentially connected to Ellen. What unfolds is an epic story that spans centuries, with Libby mining Ellen and Ulla's stories for clues about the body, and in doing so, discovering the darker threads that bind all three women together across history.