A hilarious chapter book based on the hit mobile video game with catchy music! Thirteen-year-old Tammy Aiko and her friends have started a Marine Science Club at their school.The friends sneak into a mysterious cove at the beach, and they come face-to-face with not one, but three wild sharks! The sharks need the humans help-and as it turns out, Tammy needs their help, too. Includes black-and-white illustrations throughout.