Amulet

A magical story of cave dwellers, clowns and vegetarian dragons. Dion has Asperger's Syndrome. He is an intelligent boy who lives in the functional ordered world. When he is kidnapped and taken to a place beyond the imagination, Dion finds that his disciplined mind becomes strength. But little does he realise his life is now in danger. Will his sister Megan get to him in time? Not if the evil Queen has anything to do with it.