Rash (Hardcover) by Pete Hautman

Dis, the city of the dead, has a dark secret. Deep within the shadowy alleyways of the city's Victorian streets, Jack the Ripper continues to terrorize mankind after his death. Leo Meriden, an inspector in the last government of the afterlife, finds himself accused of kidnapping souls of the city, an indictment that carries with it a punishment far worse than death. Judge John McAllister alone knows of Leo's innocence, but time wears thin for both men as the city is driven to falling apart. McAllister is set on a path to find the real kidnapper, chasing him from the River Styx to the dark underworld of Dis, uncovering horrifying mysteries that have been buried for thousands of years. The Lost Kings is a story of despair, redemption, and destined sacrifice.