This book contains the following story:

The Enchanted Castle
When Jerry, Jimmy and Kathleen are forced to spend their entire summer at school they don't imagine they will have a particularly interesting time. But that's before they stumble upon a mysterious castle set in beautiful, abandoned gardens. Could this really be an enchanted castle? Dont be a duffer, theres no such thing. But with the air thick with magic, the sun blazing down, and a maze hiding a sleeping girl at its centre, the holidays might just be looking up...