This summer, Matilda is going on vacation with her friends the Jolley-Rogers. Their destination is the island of Scurvy Sands, a favorite destination for pirates. When Matilda arrives, the swashbuckling residents are none too impressed with her. She has clean clothes and doesn't smell like she's been at sea for six months -- it's clear she's no pirate. But when Matilda discovers the secret of the legendary treasure of Scurvy Sands, the pirates decide that maybe some landlubbers aren't so bad after all!