- Series: Ridge Coler Series Record # 39405
- Series Tags: Martians (3), Venusians (2), mars (1), antigravity (1), immortality (1), withering ray (1), Iapetus (1), Saturnians (1), disintegrator rays (1)
- Ridge Coler
- 1 Water-Bound World (1932) [SF] by Harl Vincent
- 2 When the Comet Returned (1933) [SF] by Harl Vincent
- 3 Lost City of Mars (1934) [SF] by Harl Vincent