Edmond Hamilton was one of the most prolific and popular authors of science fiction before the Golden Age. His first professionally published story appeared in 1926 in Weird Tales, and it was in this magazine that he first made his reputation, writing a low-tech hybrid of science fiction and fantasy dubbed the "weird scientific" tale. Hamilton's stories are fast-oaced and action-packed, cast with heroic scientists and space explorers and featuring menaces of such colossal proportions-evolution gone awry, interstellar invasion, planets on collision courses-that fans nicknamed him "World Wrecker Hamilton." Some of Hamilton's best work from these years was collected in 1936 in The Horror on the Asteroid, one of the earliest appearances of pulp science fiction in book form. Standout works from this period include The Time Raiders, a time-travel tale about a crack army of top soldiers assembled from different eras to fight a threat to civilization, and the stories of the Interstellar Patrol, collected as Crashing Suns and Outside the Universe, about a pangalactic space brigade that protects galactic civilization from nonstop challenges to its existence. Hamilton's renown as a writer of thrilling space opera earned him the slot to write most of the lead novels for the science fiction hero pulp Captain Future, under his own name and the pseudonym Brett Sterling, and his affiliation with this magazine eventually earned him work writing for the Superman comics. He also wrote detective fiction and occasionally, under the pseudonym Hugh Davidson, tales of straight horror, some of which have been collected in The Vampire Master. Hamilton was one of the few early writers to adapt to the changing demands of science fiction in the years after World War II. His novels The Haunted Stars, A Yank at Valhalla, The Star Kings, and City at the World's End are notable for their fully drawn characterizations and focus on human moods and motives. Some of his best short fiction from this time appears in What's It Like Out There? His Starwolf novels, Weapon from Beyond, The Closed World, and World of the Starwolves, are ranked as some of the best space operas of the postwar years.