Mike Mignola teams up with artist Ben Stenbeck (B.P.R.D.: The Ectoplasmic Man) for a look into one of the Hellboy universe's greatest enigmas: nineteenth-century occult investigator Edward Grey In one of Grey's first cases as an agent of the queen, he goes from the sparkling echelons of Victorian London to its dark underbelly, facing occult conspiracies, a rampaging monster, and the city's most infamous secret society: the Heliopic Brotherhood of Ra.

Sir Edward Grey is sent to Hallam to investigate the death of a Crown-appointed official, but once he is there he hears rumors of the mysterious Unland—the wetlands around the town—and the creatures that inhabit it. Grey’s skepticism vanishes when he encounters the monsters of Unland, and he realizes that Hallam is a place of secrets. Collects Witchfinder: The Mysteries of Unland #1–#5.

Flesheating corpses and an ancient temple discovered beneath London lead authorities to call upon Edward Grey, Queen Victoria's official occult investigator. But the sinister Heliopic Brotherhood of Ra also has interests in the underground ruins. When they ask for Grey's help, he has to wonder if the threat is great enough to team up with a secret society he's sworn to destroy. Hellboy creator Mike Mignola teams with his new writing partner Chris Roberson (iZombie, Hellboy & the BPRD 1953) and his original Witchfinder collaborator Ben Stenbeck (Frankenstein Undergound) for an occult mystery exploring the darkest corners of London.

A series of occult events mystifies the man known as the Witchfinder, but even more surprising is the revelation that he is not alone in exploring the paranormal in London. When a personal invitation arrives from the palace, Sir Edward Grey is pulled even deeper into underground supernatural exploration alongside new allies in the race to stop a mad scientist from destroying London in his pursuit of mystical power.This volume collects The Gates of Heaven #1-#5 plus bonus material.

Sir Edward Grey takes on Victorian London's most infamous killer: Jack the Ripper! Abandoned by Scotland Yard when he insists on an occult purpose to the murders, Grey finds an ally in American occult adventurer Sarah Jewell. Their investigation leads them to the Proserpine Home for Wayward Women, and a dangerous conspiracy that reaches the highest levels of British political power! Mike Mignola, Chris Roberson, and Christopher Mitten tell the story of this turning point in the Witchfinder's history with help from colorist Michelle Madsen and letterer Clem Robins. Collects Witchfinder: Reign of Darkness #1-#5 and bonus material.