Mr Monster is the second chilling novel in Dan Wells's John Wayne Carver series, and the follow up to I Am Not A Serial Killer - now a major motion picture.

John Wayne Cleaver has always known he has a dark side but he's fought hard to oppress it and live a normal life - separating John from Mr Monster to survive. But after confronting and destroying the vicious killer that was terrorizing his town, his inner monster is getting stronger and harder to contain.

And now more bodies are being discovered...

With the police failing to catch Clayton County's second serial killer John is going to have to use his secret knowledge of the first demon-killer to trap the second...but will he be able to avoid suspicion falling on him, and, in the face of extreme horrors, will he be able to restrain Mr Monster?