The Mystery of the Kidnapped Whale

Alfred Hitchcock and The Three Investigators, No. 10: The Mystery of the Moaning Cave

The Clue of the Tapping Heels

The Sinister Signpost

The Black Island - Classic Colour Edition

Goodly and Grave In a Bad Case of Kidnap

Mystery of the Invisible Thief

The Secret Keepers

Three teenage boys solve mysteries using their intelligence, resourcefulness, and keen observation skills.

The Three Investigators

This story involves a bizarre theft, a mysterious laughing shadow, and a secret organization. The Three Investigators are set on a trail of crime which takes them right to the heart of the jungle.

Discover Your Child's Next Read

The Mystery of the Kidnapped Whale

Marc Brandel, Robert Arthur, 1983

Alfred Hitchcock and The Three Investigators, No. 10: The Mystery of the Moaning Cave

William Arden, 1968

The Clue of the Tapping Heels

Carolyn Keene, Russell H. Tandy, 1939

The Sinister Signpost

Franklin W. Dixon, 1936

The Black Island - Classic Colour Edition

Hergé, 1943

Goodly and Grave In a Bad Case of Kidnap

Justine Windsor, Becka Moor, 2017

Mystery of the Invisible Thief

Enid Blyton, 1950

The Secret Keepers

Diana Sudyka, Trenton Lee Stewart, Stewart Lee, 2016