Otis Adelbert Kline 's Books
A very well recieved series by Otis Adelbert Kline are the books, featuring tropes. The most popular books are Maza of the Moon (1929), The Call of the Savage (1931) aka Jan of the Jungle, Dr. Dorp 01 The Malignant Entity, Robert Grandon 02 Prince of Peril, Robert Grandon 01 Planet of Peril, Robert Grandon 03 The Port of Peril aka Buccaneers of Venus, Bride of Osiris, SPAWN OF THE COMET, Maza of the Moon, The Metal Monster, which was published in 2022.