A thrilling and beautifully illustrated adventure story set in the world of warriors, longships, legend, and dragons: the Age of Vikings.    Josh and Maisie are two adventure loving kids who discover a mysterious small door at the back of their Granddad's bookcase. As they squeeze through the doorway, they travel back in time...   Read about their amazing adventures as they travel in a Viking longship and help defeat a dragon — and find out what it was like to live in Viking times.     Not just an adventure story, this lavishly illustrated title, suitable for children aged 7-11, also has detailed factual information about the Viking world, life in the towns, crafts, longships, exploration, arms and weapons, Norse gods, myths and legends, 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.