[From back cover]: Can you battle the sea - and survive? You are sailing with the crew of the Allegro, searching the depths of the Pacific Ocean for the last living dinosaur, the Arkasaur. Only one day out of port, you hear radio reports that an undersea volcano has erupted. A tidal wave is heading toward you! Foaming blue-green water crashes on board. The skipper is thrown to the deck. You have to take the wheel!