Robert Arthur

Alfred Hitchcock and the three investigators in The mystery of the green ghost.

The Secret of Terror Castle

The Mystery of the Talking Skull

The Mystery of the Whispering Mummy

The Mystery of the Vanishing Treasure

The Mystery of the Silver Spider

The Three Investigators in the mystery of the moaning cave

The Secret of Skeleton Island

The Mystery of the Stuttering Parrot

The Mystery of the Screaming Clocks

Alfred Hitchcock and The Three Investigators in The Mystery of the Fiery Eye

The Flaming Footprints

The Secret of the Crooked Cat (Three Investigators)

Laughing Space

Isaac Asimov presents The Golden Years of Science Fiction

Thrillers and More Thrillers

Isaac Asimov Presents The Great SF Stories 3

Spells

Ghost Stories

Misterio del loro tartamudo

The Three Investigators

Myst Vanishing Treasu Ah05 3in

Young witches & warlocks

Ring Once for Death

Ghosts And More Ghosts.

Isaac Asimov Presents The Great SF Stories 2 (1940)

Mystery and More Mystery.

Aggravation of Elmer

Isaac Asimov präsentiert Märchenwelt der Fantasy. Die schönsten Geschichten [20 short stories]

Die drei???, Super-Spannung

Mystery of the Silver Spider

Misterio del tesoro desaparecido

Misterio del tesoro desaparecido

Misterio de la momia

Die drei ??? und die Geisterinsel

alfred hitchcock and the three investigators

Ghosts and more ghosts,

Treatment and prevention of decay of the teeth: A Practical and Popular Treatise

Myst Moaning Cave Ah10 3in (Armada)

Spies and more spies