"Filled with intense horror, wicked humor, and dynamic action. WOW...JUST WOW!" --Jonathan Maberry, New York Times bestselling author of Predator OneWELCOME TO HELL...New York Times bestselling author of Robert Kirkman's The Walking Dead: Return of the Governor.Meet Johnny Fitzgerald, a lonely, divorced graphic illustrator with a major heroin habit-the one that cost him his marriage. A last-minute Christmas visit from his six-year-old son, Jacob, is a surprise but Johnny loves spending time with his little boy. They just need to run one errand before the Christmas festivities can begin: Johnny needs to retrieve a document from his unit in a self-storage warehouse on the outskirts of Chicago.The enormous warehouse is deserted for the holidays, so the two are alone, in Johnny's storage unit, as he hunts for the document. Suddenly, the roll-up door to the unit slams to the floor, locking them in.They are trapped in the unit, with no hope of rescue in the foreseeable future. They have no supplies or resources. They will battle thirst, hunger, and, for Johnny, perhaps the worst craving of them all-heroin.But this is only the beginning of Johnny's painful education in de-tox. Because there is something dark and terrifying behind Johnny's dope-sick hallucinations-something touched off by the place itself. And it's coming for him and his son.