The Strange Case of the Talking Doll
The Mystery of the Vanished Village.
The Suspicious Stranger on the Train
The Clues Hidden in the Painting
The Puzzle of the Stolen Jewels
The Riddle of the Abandoned Factory
The Thriller on the Cruise Ship
The Secret Society of Detectives
The Cryptic Message on the Wall
The Hunt for the Serial Killer
The Secret of the Old Mansion
The Mysterious Disappearance of the Mayor
The Poisoned Cup of Tea
The Ghost in the Attic
The Curse of the Ancient Artifact
The Deadly Dinner Party
The Intrigue at the Art Gallery
The Enigma of the Locked Room
The Case of the Missing Heirloom Necklace
A Murder in the Library