Lucy Weber, daughter of the Black Hammer, grew up to become an investigative reporter for the Global Planet. Now she's on the hunt for the true story about what happened to Spiral City's superheroes after they defeated Anti-God and saved the world. All answers seem to lie with the dangerous super villain tenants of Spiral City's infamous asylum. As she gets closer to the truth she uncovers the dark origin stories of some of her father's greatest foes, and learns how they tie into the puzzle of what happened to Spiral City's greatest hero.

Lou Kamiski was just a regular ol' Spiral City plumber when one day he was plunged into the horrific world of the great Old Ones to become CTHU-LOU! Witness the origin story of how a mild-mannered handyman turned into an emissary for a cosmic god and one of Black Hammer's most feared opponents. \* Guest artist from the main Black Hammer series DAVID RUBIN returns for his own miniseries with JEFF LEMIRE!

This mystery set in the world of superheroes follows a reporter investigating what happened to her father: The Black Hammer, from New York Times bestselling author Jeff Lemire (Descender, Underwater Welder, Old Man Logan). All answers seem to lie in Spiral City's infamous insane asylum where some of its dangerous super-villain tenants reside. As she gets closer and closer to the truth she uncovers the dark origin stories of some of Black Hammer's greatest foes and how they tie into the puzzle of what happened to Spiral City's greatest hero. Collects issues 1-4 of the Sherlock Frankenstein series & issue #12 of Black Hammer.