The oath above was created by science fiction writer Alfred Bester. Perhaps due to the constant contact between Green Lantern of Earth and the Guardians of Oa, there has been regular contact between the world of science fiction literature and the comic. In addition to the aforementioned Bester, another famous sci-fi writer who has penned at least one GL tale is Larry Niven, who wrote Ganthet's Tale. Ganthet was the Guardian who bestowed the last ring upon Kyle Rayner.