Pseudonym For: Havens, David; Havens, Lani; Kantar, Andrew; Stanley, George Edward; von Wacker, Alexander
Items with "Masters, M." as Credited Author
The Case of the Chocolate Snatcher (1 edition)The Case of the Clever Computer Crooks (1 edition)
The Case of the Clever Marathon Cheat (1 edition)
The Case of the Famous Chocolate Chip Cookies (1 edition)
The Case of the Mysterious Dognapper (2 editions)
The Case of the Toilet Paper Decorator (1 edition)
The Case of the Video Game Smugglers (2 editions)
The Mystery of the Haunted House (1 edition)
The Mystery of the Phony Frankenstein (1 edition)
The Mystery of the Star Ship Movie (1 edition)
The Secret of the Long-Lost Cousin (2 editions)
The Secret of the Loon Lake Monster (1 edition)
The Secret of the Software Spy (1 edition)
The Secret of the Video Game Scores (2 editions)