Zudora, not knowing she's an heiress to a $20 million fortune, lives with her uncle, a mystic and detective, who covets her inheritance. She wants to marry John Storm but her uncle is against it. However, the uncle makes a bargain; if Zudora can solve the next twenty mysteries brought to him, she can marry as she chooses. Episodes 1,2 and 8, plus another unidentified chapter, survive. The rest is believed to be lost.
Jungle Girl
1941
6
Beatrice Fairfax
1916
5
The Face in the Fog
1922
6
The Desert Hawk
1944
6
King of the Mounties
1942
0
Flash Gordon
1936
6
The Thrill Chaser
1923
5
Brenda Starr, Reporter
1945
0
The Great Alaskan Mystery
1944
5
Hawk of the Wilderness
1938
7
Jungle Menace
1937
5
The Black Coin
1936
6
Tailspin Tommy in The Great Air Mystery
1935
6
The Lost City
1920
0
The Secret of the Submarine
1915
0
Spy Smasher
1942
5
Jungle Queen
1945
5
The Great Adventures of Captain Kidd
1953
4
The Microscope Mystery
1916
0
The Secret of Treasure Island
1938
4