(Confession of Mastermind Novella) Ever wonder what led up to Zakary Jameson's reign of terror? Here, the question is answered: How does a wonderfully kind, perfectly normal boy turn into a serial killer?

FBI agent Alexander Donovan never thought his job was easy, but it was still something he enjoyed doing. At least until he was assigned to catch Zakary Jameson. An insane man with a bizarre ability killing for an unknown reason, Jameson always was a step ahead. Always playing a little game of cat and mouse. But...why? Why would a man of a seemingly perfect background go on a killing streak with unlinked, random victims? As Donovan discovers the truth, he wishes he had never accepted the case. Cover by @TheCivilWars

While investigating the chilling deaths of three teenage girls in the remote town of Briarwood, Detective Evan O'Riley is drawn into the unsolved mysteries of a notorious 1960s serial killer. Three sixteen-year-old girls have plunged from the roof of their school. The question lingers: did they jump, or were they pushed? Tasked with uncovering the truth, Evan O'Riley-seasoned by years of crime-solving in Riverton-arrives in Briarwood, determined to discover whether he's facing triple homicide or a heartbreaking suicide. As he delves into the case, Evan uncovers unsettling whispers about the town's infamous SAD Killer, whose string of brutal murders left Briarwood haunted-and whose identity was never discovered. Fifty years later, the ghosts of the past resurface as Evan combs through long-buried evidence, tracks down survivors, and seeks out old investigators tied to the original crimes. Driven to find answers for both the present and the past, Evan is relentless in his pursuit of justice. But as old secrets come to light and the investigation intensifies, Evan realizes the SAD Killer's legacy isn't as distant as he believed-the danger may be closer than anyone imagines.