When Dub Walker's close friend Sheriff Mike Savage becomes the victim of a gruesome murder, the forensic expert is called upon to track down the serial killer who's been terrorizing the county. Having been involved in more than 100 cases of foul play and witnessed the bloody remains of rape, torture, and unthinkable mutilation, Dub thought he had seen it all-yet the killer is unlike any murderer Dub has ever encountered. Vacillating between wildly divergent personalities fueled by post-traumatic stress disorder-at times calm, cold, and calculating; at others maniacal and out of control-the psychopath taunts, threatens, and outmaneuvers Dub at every turn. The stakes are suddenly elevated as Dub uncovers a deadly conspiracy tainted with unrestrained greed, corruption, and ties to the military establishment and the medical community.

D. P. Lyle is the Amazon #1 Bestselling; Macavity and Benjamin Franklin Award-winning; and Edgar (2), Agatha, Anthony, Shamus, Scribe, Silver Falchion, and USA Today Best Book (2) Award-nominated author of 18 books, both non-fiction and fiction, including the Samantha Cody, Dub Walker, Jake Longly and Cain/Harper thriller series and the Royal Pains media tie-in novels. His essay on Jules Verne's THE MYSTERIOUS ISLAND appears in THRILLERS: 100 MUST READS, his short story "Even Steven" in ITW's anthology THRILLER 3: LOVE IS MURDER, and his short story "Bottom Line" in FOR THE SAKE OF THE GAME. He served as editor for and contributed the short story "Splash" to SCWA's anthology IT'S ALL IN THE STORY.
He is International Thriller Writer's VP for Education, and runs CraftFest, Master CraftFest, and ITW's Online Thriller School. Along with Jan Burke, he was the co-host of Crime and Science Radio and hosts the podcast series Criminal Mischief. He has worked with many novelists and with the writers of popular television shows such as Law & Order, CSI: Miami, Diagnosis Murder, Monk, Judging Amy, Peacemakers, Cold Case, House, Medium, Women's Murder Club, 1-800-Missing, The Glades, and Pretty Little Liars.