(From the publisher):
The Shoreham monster: "I saw it! I saw the monster! It was wrinkled -- like an old man -- with big teeth!". The Hollisters and the Shoreham Detective Club are going to solve the mystery of the monster, and flying saucers, and a mysterious airplane with an even more mysterious pilot, and the strangest case of kidnapping you've ever heard of.
Original title: The Happy Hollisters and the Monster Mystery
Genre: Fiction→ Children & Young Adult→ Mystery