The Mystery of the Magic Circle
M. V. Carey
M. V. Carey
Three young sleuths uncover a coven of witches when they search for the missing memoirs of a movie star.
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The Mystery of the Creep-Show Crooks
M. V. Carey
M. V. Carey
The Three Investigators tangle with a couple of shady producers of horror films when they try to track down a runaway teenager.
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The Secret of the Haunted Mirror
M. V. Carey
M. V. Carey
Three young detectives investigate a Hollywood mansion in which a Spanish magician disappeared.
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The Mystery of the Blazing Cliffs
M. V. Carey
M. V. Carey
The sighting of a UFO leads the Three Investigators to uncover a bizarre confidence game.
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The Mystery of the Wandering Cave Man
M. V. Carey
M. V. Carey
Three young sleuths investigate the disappearance of a caveman's bones from a museum and uncover skulduggery at a science foundation.
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The Mystery of the Flaming Footprints
M. V. Carey
M. V. Carey
When an eccentric local artist disappears suddenly, the three investigators look into the matter.
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The Mystery of the Cranky Collector
M. V. Carey
M. V. Carey
When an ornery book collector disappears, the Three Investigators break into his secret computer files in search of clues and gradually uncover his mysterious past.
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The Mystery of the Singing Serpent
M. V. Carey
M. V. Carey
The Three Investigators become involved in witchcraft when they try to rescue a woman from the influence of snake worshipers.
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The Mystery of the Trail of Terror
M. V. Carey
M. V. Carey
While accompanying Pete's inventor grandfather to New York where the old man plans to sell his new invention, the Three Investigators find themselves in the middle of a dangerous spy case.
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The Mystery of Monster Mountain
M. V. Carey
M. V. Carey
The three young sleuths solve a case of double identity while investigating the legend of Monster Mountain.
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The Mystery of the Missing Mermaid
M. V. Carey
M. V. Carey
The three young detectives search for a missing little boy and his dog, but the case takes an ominous turn when the dog turns up dead. Reprint.
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The Mystery of the Sinister Scarecrow
M. V. Carey
M. V. Carey
The theft of some mutant army ants by a scarecrow leads the Three Investigators to the solution of two daring crimes in the art world.
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The Mystery of Death Trap Mine
M. V. Carey
M. V. Carey
The three investigators, aided by their friend Allie, try to untangle the unusual circumstances surrounding an abandoned silver mine.
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The Mystery of the Invisible Dog
M. V. Carey
M. V. Carey
The three investigators are hounded by supernatural forces as they attempt to recover a stolen sculpture of a legendary wolf-dog.
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The Mystery of the Scar-Faced Beggar
M. V. Carey
M. V. Carey
A wallet dropped by a scar-faced beggar sets the three investigators on the trail of bank robbers.
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