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The Mystery of the Singing Serp - M. V. Carey
Product DescriptionThe three investigators become involved in witchcraft when they try to rescue a woman from the influence of snake worshippers. -
The Mystery of the Shrinking Ho - William Arden
Product DescriptionThe Three Investigators solve a case involving an international gang of art forgers. -
The Mystery of the Scar-faced B - M. V. Carey
Product DescriptionA wallet dropped by a scar-faced beggar sets the three investigators on the trail of bank robbers. -
The Mystery of the Moaning Cave - William Arden
Product DescriptionWhile vacationing on a California ranch, three boys decide to investigate strange wails that come from a mysterious cave where a famous outlaw disappeared. ... -
The Mystery of the Magic Circle - M. V. Carey
Product DescriptionThree young sleuths uncover a coven of witches when they search for the missing memoirs of a movie star. -
The Mystery of the Laughing Sha - William Arden
Product DescriptionThe three investigators try to solve a mystery involving a gold Indian amulet and a weird laughing shadow that appeared to them in the night. -
The Mystery of the Kidnapped Wh - Marc Brandel
Product DescriptionThe three investigators, attempting to rescue a beached whale, end up searching for sunken treasure. -
The Mystery of the Invisible Do - M. V. Carey
Product DescriptionThe Three Investigators are hounded by supernatural forces as they attempt to recover a stolen sculpture of a legendary wolf-dog. -
The Mystery of Wandering Cavema - M. V. Carey
Product DescriptionThree young sleuths investigate the disappearance of a caveman's bones from a museum and uncover skulduggery at a science foundation. -
The Mystery of Sinister Scarecr - M. V. Carey
Product DescriptionThe theft of some mutant army ants by a scarecrow leads the Three Investigators to the solution of two daring crimes in the art world.