Harold needs a picture for his bedroom wall so he creates one with his one purple crayon.

Two children find themselves in a story when they write words in the sand on the beach, and whatever they have written appears when the waves wash the words away.

Harold finds himself at the North Pole, where Santa needs his help.

One night Harold, with his trusty purple crayon, goes for a walk on a tightrope. Down he falls into a circus complete with trapeze, clowns, and lion tamers. A must-have for every imaginative childs bookshelf.