# | Book Title | Author | ||
---|---|---|---|---|
1 | Secret of Skeleton Island, The | Campbell, Bruce | ||
2 | Riddle of the Stone Elephant, The | Campbell, Bruce | ||
3 | Black Thumb Mystery, The | Campbell, Bruce | ||
4 | Clue of the Marked Claw, The | Campbell, Bruce | ||
5 | Clue of the Coiled Cobra, The | Campbell, Bruce | ||
6 | Secret of Hangman's Inn, The | Campbell, Bruce | ||
7 | Mystery of the Iron Box, The | Campbell, Bruce | ||
8 | Clue of the Phantom Car, The | Campbell, Bruce | ||
9 | Mystery of the Galloping Horse, The | Campbell, Bruce | ||
10 | Mystery of the Green Flame, The | Campbell, Bruce | ||
11 | Mystery of the Grinning Tiger, The | Campbell, Bruce | ||
12 | Mystery of the Vanishing Musician, The | Campbell, Bruce | ||
13 | Mystery of the Shattered Glass, The | Campbell, Bruce | ||
14 | Mystery of the Invisible Enemy, The | Campbell, Bruce | ||
15 | Mystery of Gallows Cliff, The | Campbell, Bruce | ||
16 | Clue of the Silver Scorpion, The | Campbell, Bruce | ||
17 | Mystery of the Plumed Serpent, The | Campbell, Bruce | ||
18 | Mystery of the Sultan's Scimitar, The | Campbell, Bruce |