Robert Arthur

M. V. Carey

A statue of a mermaid proves to be a vital clue when the Three Investigators set out to trace a missing child.

The Mystery of the Missing Mermaid

The three young sleuths solve a case of double identity while investigating the legend of Monster Mountain.

The Three Investigators in The Mystery of Monster Mountain

A wallet dropped by a scar-faced beggar sets the three investigators on the trail of bank robbers.

The Three Investigators in The Mystery of the Scar-faced Beggar

The Three Investigators tangle with a couple of shady producers of horror films when they try to track down a runaway teenager.

The Three Investigators in The Mystery of the Creep-show Crooks

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.

The Three Investigators in the Mystery of the Cranky Collector

Alfred Hitchcock

Ein Kunstsammler hat die 3 Detektive diesmal engagiert. Ihm ist eine wertvolle Glasplastik gestohlen worden, die ihm später von dem unbekannten Dieb wieder zum Kauf angeboten wird. In dem Haus geschehen dazu die seltsamsten Unfälle, sodass schliesslich nur noch wenige Bewohner heil und gesund sind ...

Die drei ??? und der Karpatenhund

The Three Investigators become involved in witchcraft when they try to rescue a woman from the influence of snake worshipers.

Alfred Hitchcock and the Three Investigators in The Mystery of the Singing Serpent

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.

The Mystery of the Trail of Terror

When an eccentric local artist disappears suddenly, the three investigators look into the matter.

The Three Investigators in The Mystery of the Flaming Footprints

Jack Hearne

Three young sleuths uncover a coven of witches when they search for the missing memoirs of a movie star.

Alfred Hitchcock and the Three Investigators in The Mystery of the Magic Circle

The three investigators, aided by their friend Allie, try to untangle the unusual circumstances surrounding an abandoned silver mine.

Alfred Hitchcock and the Three Investigators in The Mystery of Death Trap Mine

Three young sleuths discover who is haunting a mysterious old mirror--and why.

The Secret of the Haunted Mirror

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.

Alfred Hitchcock and the Three Investigators in The Mystery of the Sinister Scarecrow

The Three Investigators journey to an isolated mountain ranch to investigate the reported invasion of the West Coast by UFOs.

The Mystery of the Blazing Cliffs

The Three investigators are hounded by supernatural forces as they attempt to recover a stolen sculpture of a legendary wolf-dog.

The Mystery of the Invisible Dog

A statue of a mermaid proves to be a vital clue when the three investigators set out to trace a missing child.

The Three Investigators in the Mystery of the Missing Mermaid

The Three Investigators are hounded by supernatural forces as they attempt to recover a stolen sculpture of a legendary wolf-dog.

Based on Characters Created by Robert Arthur

Alfred Hitchcock and the Three Investigators in The Mystery of the Invisible Dog

Three young sleuths investigate the disappearance of a caveman's bones from a museum and uncover skulduggery at a science foundation.

M. V. Carey

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