To Cyril, Anthea, Robert, Jane, and their baby brother, the house in the country promises a summer of freedom and play. But when they accidently uncover an accident Psammead--or Sand-fairy--who has the power to make wishes come true, they find themselves having the holiday of a lifetime, sharing one thrilling adventure after another. Asleep since dinosaurs roamed the earth, the ill-tempered, odd--looking Psammead