Max and his friends have already fought off three terrible Robobeasts.
Now they face the ultimate battle, as the evil Professor tries to use Mangler the Dark Menace to destroy the ocean worlds! Don't miss the other books in this series: Shredder the Spider Droid, Stinger the Sea Phantom and Crusher the Creeping Terror.
- Format: Paperback
- Pages: 128 pages, Illustrations
- Publisher: Hachette Children's Group
- Publication Date: 05/09/2013
- Category: Adventure
- ISBN: 9781408324141