"When Jamie meets Tess, a fellow member of the Dinosaur Club, on the beach of Ammonite Bay, they venture into a secret cave that transports them back to the prehistoric era where they come face-to-face with the Ankylosaurus but need the Club's help to get home"--]cProvided by publisher.

Rex Stone is the pseudonym used by Working Partners, the creators of Beast Quest, Warrior Cats, and other successful series like Animal Ark.