Author of bestselling Holes - over half a million copies have been sold in the UK alone Lively and engaging eight-book series for 5-7 year olds - each story in the series tackles everyday problems and issues faced by children with refreshing humour and not once falling into patronising moralising Filled with black and white illustrations by Sue Hellard - a much admired and respected illustrator of children's books - adding her own humour and energy to the books

Marvin is amazed when he goes home with Casey Happleton one day after school and discovers that she lives in an old fire station. But that's not all that surprises him. Casey has a secret she wants to share - a crystal with super magical powers. A crystal that makes all your wishes come true. Can it be real or could she be casting her own spell on him?