A lonely summer looms ahead for Lana, with only Nan and Grandad for company. Still, it’s better than being stuck at home, living in her perfect brother’s shadow. But Carrig Cottage has magic and secrets of its own.

When Lana finds a strange coat in the attic, and a book about mysterious, magical seal people – selkies – she also uncovers an incredible family secret. Lana is on the edge of a whole new, impossible world. Is this where she truly belongs?