The Mystery of the Shrinking House (Alfred Hitchcock and The Three Investigators, #18)

The Secret of Phantom Lake (Alfred Hitchcock and The Three Investigators, #19)

While picking up a load of junk, the boys acquire a trunk from an old ship. A journal from a crewman is hidden in the trunk, giving clues to find a treasure that he hid before his death.

The Secret of the Haunted Mirror (Alfred Hitchcock and The Three Investigators, #21)

The Mystery of the Magic Circle (Alfred Hitchcock and The Three Investigators, #27)

Is former movie star Madeline Bainbridge an innocent victim--or a target of revenge? Thieves have just stolen her valuable old films. And her memoirs have mysteriously disappeared before they could be published. Why would anyone want the aging actress to

The Mystery of the Smashing Glass (The Three Investigators, #38)

Three young detectives try to trap an invisible vandal who has been breaking car windows all over town.

The Secret of Shark Reef (Alfred Hitchcock and The Three Investigators, #30)

Three young sleuths uncover a mystery buried since World War II when they come to the aid of a trouble-plagued environmentalist who is protesting the drilling of off-shore oil wells.

The Mystery of the Purple Pirate (The Three Investigators, #33)

Searching for a legendary pirate treasure, the three investigators find a band of modern day pirates.

The Mystery of Wreckers' Rock (The Three Investigators, #42)

Eine willkommene Abwechslung für die drei ???: Als Reporter sollen sie über das rauschende Kostümfest auf der Insel Ragnarson Rock berichten. Doch der kleine Spaß entwickelt sich zum handfesten Fall. Spukt es auf der Insel? Wer will ihnen die Fotos ab

The Mystery of the Dancing Devil (Alfred Hitchcock and The Three Investigators, #25)

Three young detectives search for a stolen statue only to find that it has mysteriously come to life.

The Secret of the Crooked Cat (Alfred Hitchcock and The Three Investigators, #13)

With a clue provided by an unusual stuffed cat, The Three Investigators solve the mysterious troubles of an accident-prone carnival.