The Castle in the Attic;

Ten-year-old William receives a wooden model of a medieval castle as a gift. It has everything he could possibly want, right down to a miniature drawbridge, a portcullis and a silver knight. In this enthralling story that weaves the everyday problems of growing up with magic and fantasy, the castle introduces William to an adventure involving magic, a ferocious dragon, a wicked wizard, and his own personal quest, where courage will finally triumph over fear.