All aboard for mystery! Scooby and his mates take to the sea on an old-fashioned clipper ship. Skipper Joe, the captain, has inherited a legendary pirate's hat that is rumored to have a treasure map inside. But on land or sea, Scooby is never far from trouble -- this time in the form of a spooky deep-sea diver. Can they solve the mystery before the tides turn against them? Page Turners Encourage independent reading with an adventurous story filled with favorite characters.