Publisher's Synopsis
It's the first day of the summer holidays and Harriet, Jake and Matthew are off to see Grandmother, who lives in Cliff View Cottage in the seaside town of Ormsthorpe. They're looking forward to spending their days on the beach, cliff-climbing, and exploring the rock pools. But then one stormy night, when the moon is full, something quite strange happens. They are transported to an ancient village, where they meet Olaf and Sigrid and learn all about the ways of the Vikings.