Christopher Anvil was a pseudonym used by author Harry C. Crosby. He began publishing science fiction with the story "Cinderella, Inc." in the December 1952 issue of the science fiction magazine Imagination. By 1956, he had adopted his pseudonym and was being published in Astounding Magazine. Anvil's repeated appearances in Astounding/Analog were due in part to his ability to write to one of Campbell's preferred plots: alien opponents with superior firepower losing out to the superior intelligence or indomitable will of humans. A second factor is his stories are nearly always humorous throughout. Another was his characterization and manner of story crafting, where his protagonists slid from disaster to disaster with the best of intentions, and through exercise of fast thinking, managed to snatch victory somehow from the jaws of defeat.