Her mother, the famous evangelist Sister Eugenia Overton, has been killed by a fire-breathing thing crawling through New York's sewers. Now Sister Ellen tells the press about this monstrous Leviathan, a biblical fury that no normal man can hope to stop!

The police are helpless against the menace. Can the Shadow defeat it? Maybe, but only after he takes care of his more pressing problem -- dozens of heavily armed gangsters in their hideout! This is one of the most exciting gun-battles ever seen in comics!