A thrilling and beautifully illustrated adventure story set in a world of stupendous giants and ferocious hunters: the Age of Dinosaurs.    Josh and Maisie are two adventure-loving children who discover a mysterious, small door at the back of their Granddad's bookcase. On turning a key, the magic Time Key, they squeeze through—and find themselves in a whole new world, back in time.    Read about the children's amazing exploits as they go in search of mysterious dinosaurs with metre-long claws. But little do they know what dangers lie in wait...    Not just an adventure story, this lavishly illustrated title, suitable for children aged 7-11, also has detailed factual information about dinosaurs, the age they lived in, theropods, sauropods, defence and attack, dinosaur babies, pterosaurs and marine reptiles, and a glossary of terms.Created by Q-files.com, the great online illustrated encyclopedia: the comprehensive, in-depth, expert-verified educational resource for children aged 8-13.