Pep Squad Mysteries Book 11: Treasure of Gull's Island

There's adventure ahead when the Sea City varsity cheerleaders take to the high seas for a day of sailing with Kristen and Kelly Hobbs' godfather. When their boat stops on a seemingly-deserted isle to make repairs, the Pep Squad Mystery Club must contend with a crew of ghastly pirates in a race for the TREASURE OF GULL'S ISLAND.