Title: Mr. Monster
Description: Mr. Monster is a young adult horror novel by Dan Wells, published in 2010 by Tor Books and by Headline. It is the sequel to I Am Not A Serial Killer and the second book in the John Wayne Cleaver series.

  John Wayne Cleaver saved his town from a murderer even more appalling than the serial killers he obsessively studies. But it turns out even demons have friends, and the disappearance of one has brought another to Clayton County. No one in Clayton is safe unless John can vanquish two nightmarish adversaries: the unknown demon he must hunt and the inner demon he can never escape.
Subjects: Fiction, thriller, serial murders, crime, psychology, suspense, mystery, detectives, supernatural, dark, murder, horror, contemporary, young adult fiction
Places: Clayton County, North Dakota
People: John Wayne Cleaver, Bill Crowley, April Cleaver, Brooke Watson, Clark Forman, Max Bowen, Lauren Cleaver, Curt Halsey
Time periods: Modern/Contemporary