But meanwhile life on Bancree becomes desperate as men suddenly begin to disappear. Reports of missing men on other nearby islands fill the press and unnerve the community. When a body washes ashore, suspicion turns to the newcomers on Dog Rock. But Flo suspects something else, even though it seems impossible: She asks local residents for anything they know about "selkies," the mythical women who can turn from seal to human and back again.
Convinced of her new neighbors' innocence, Flo is fiercely determined to protect her friend Ailsa. Could the answer to the disappearances, and to the pull of her own heart, lie out there, beyond the waves?