The year is 1932. The place is Zenith, home of the mysterious Black Centipede. The sinister Professor James Moriarty comes calling, and he's brought a few friends with him: John Dillinger, Pretty Boy Floyd, Ma Barker, Bonnie and Clyde, the Bell Witch, the Loch Ness Monster, and the rest of the deadly Order of the Sunless Circle. Moriarty is looking for Jack the Ripper's Analytical Engine, and is prepared to destroy Zenith to find it. But the Lord...