Characters in The Mystery of Tally-Ho Cottage

Fatty

Also in The Mystery of the Burnt Cottage, The Mystery of the Secret Room, The Mystery of the Pantomime Cat, The Mystery of the Invisible Thief, The Mystery of the Vanished Prince, The Mystery of Holly Lane, The Mystery of the Strange Messages, The Mystery of Banshee Towers, Still more Mystery Stories (The Mystery of Banshee Towers / The Mystery of the Burnt Cottage / The Mystery oft the Disappearing Cat)

The Find-Outers

Also in The Mystery of the Spiteful Letters

Inspector Jenks