Otis Adelbert Kline (1891-1946) born in Chicago, Illinois, USA, was an adventure novelist and literary agent during the pulp era. Much of his work first appeared in the magazine Weird Tales. Kline was an amateur orientalist and a student of Arabic, like his friend and sometime collaborator, E. Hoffmann Price. In this book: The Venus Trilogy The Planet of Peril (1929) The Prince of Peril (1930) The Port Of Peril (Buccaneers Of Venus) (1932) The Mars Stories The Swordsman of Mars The Outlaws of Mars (1933) The Man from the Moon Maza of the Moon (1930) Stolen Centuries (1939) The Thing That Walked in the Rain The Revenge of the Robot The Metal Monster The Malignant Entity Spawn of the Comet A Vision of Venus