Swimming with the Plesiosaur

Description:

"Tom and Jamie can't believe their luck when they find a secret entrance to a prehistoric world filled with dinosaurs. Loaded with snorkeling gear, the boys decide to explore the cove itself. But there are some not-so-friendly creatures lurking, including a hungry plesiosaur that wants a snack! Can the boys save their dinosaur friends--and themselves--from the deadliest creature in the prehistoric ocean?"--Page 4 of cover.

subjects: Dinosaurs,  Juvenile fiction,  Plesiosauria,  Fiction,  Children's fiction,  Dinosaurs, fiction,  Adventure and adventurers, fiction,  Friendship, fiction