Secret City Saga is a concept and collection of various comic book titles created by influential writer-artist Jack Kirby, and published by the short-lived Topps Comics, an off-shoot of the popular Topps Trading Card company. Beginning in April 1993, the Secret City Saga books consisted of 3 four issue mini-series (Jack Kirby's Secret City Saga, Satan's Six, TeenAgents) and 3 one-shot specials (Captain Glory, Nightglider, and Bombast), which were all preceded by the one-shot promotional giveaway, Jack Kirby's Secret City Saga #0.