Hell (a.k.a. Gehenna, Hades, Hel, Jahannam, Sheol and Tartarus) is a fictional location, an infernal Underworld utilized in various American comic book stories published by DC Comics. It is the locational antithesis of the Silver City in Heaven. The DC Comics location known as Hell is based heavily on its depiction in Abrahamic mythology. Although several versions of Hell had briefly appeared before in various other DC Comics publications in the past, the official DC Comics concept of Hell was first properly established when it was mentioned in The Saga of the Swamp Thing (vol. 2) #25–27 (June–August 1984) and was first seen in Swamp Thing Annual #2 (1985), all of which were written by Alan Moore and illustrated by Stephen Bissette and John Totleben.