The Mystery of the Magic Circle
The Mystery of the Creep-Show Crooks
The Secret of the Haunted Mirror
The Mystery of the Blazing Cliffs
The Mystery of the Wandering Cave Man
The Mystery of the Flaming Footprints
The Mystery of the Cranky Collector
The Mystery of the Singing Serpent
The Mystery of the Trail of Terror
The Mystery of Monster Mountain
The Mystery of the Missing Mermaid
The Mystery of the Sinister Scarecrow
The Mystery of Death Trap Mine
The Mystery of the Invisible Dog
The Mystery of the Scar-Faced Beggar