Writer Jean-Marc Lofficier had a fourth and final book planned, entitled The Green Light, which would have introduced counterparts of Green Lantern, the Flash and the Martian Manhunter (based on Leni Riefenstahl's Das Blaue Licht (U.S. title: The Blue Light (1932)) and Arnold Fanck's Der Weiße Rausch - Der Neue Wunder des Schneeschuhs (U.S. title: The White Ecstasy (1931)) (which also starred Leni Riefenstahl)), and a female version of Aquaman (based on Georg Wilhelm Pabst's Die Herrin von Atlantis (U.S. title: The Mistress of Atlantis) (1932)).
Writer Jean-Marc Lofficier had a fourth and final book scheduled, titled The Green Light, which would have introduced parallel characters to Green Lantern, the Flash, and the Martian Manhunter (inspired by Leni Riefenstahl's Das Blaue Licht and Arnold Fanck's Der Weiße Rausch), along with a female counterpart of Aquaman (based on Georg Wilhelm Pabst's Die Herrin von Atlantis).