The first two books in a series of animal adventure-thrillers, packed with excitement and suspense! Each book features characters plunged into an extreme situation, and surviving a life-threatening encounter with a dangerous predator. Jack's family are on a whale-watching trip. The boat is surrounded by great white sharks and Jack is relieved they are on such a substantial ship, the deck far away from the water. That is, until a sudden storm hits and the Simmonds family are thrown at the mercy of the storm, sea and the sharks...