Title: The treasure of the Viking ship (Keywords) and Author: Stilton Thea (Keywords)

Get ready for more exciting adventures with Colette, Violet, Pamela, Nicky, and Paulina on Whale Island! In The Treasure of the Viking Ship, the team investigates an ancient archeological discovery, then in Catching the Giant Wave the island is threatened by a freak accident of nature!

While salvaging a Viking ship submerged off the coast of Mouse Island with their Mouseford Academy classmates, the Thea Sisters learn that someone wants to steal the vessel's historic treasure.