The gorillas of Gill Park / Gordon, Amy

Willy Wilson leads a boring life until he spends a summer with his Aunt Bridget. He stumbles on an extraordinary mystery involving a strange millionaire, a hot-tempered orphan, some musical instruments and the future of Gill Park. Willy has a plan that can save the park--if only he can find the right costume.

While spending the summer before seventh grade with his aunt, Willy Wilson finds his first friends ever in the colorful characters who all love the neighborhood park owned by an eccentric old man.