Sixteen-year-old Jeff Jacobson had never heard of Jeffrey Dahmer, the infamous serial killer who brutally murdererd seventeen people more than twenty years ago. But then Jeff discovers he was constructed in a laboratory only eight years ago, part of a top-secret government cloning experiment called Project CAIN. And scientists created him entirely from Jeffrey Dahmer's DNA. Jeff isn't the only teenage serial-killer clone. Others have been genetically engineered using the DNA of the Son of Sam, the Boston Strangler, and Ted Bundy. Some clones were raised, like Jeff, in caring family environments; others within homes that mimicked the horrific early lives of the serial killers they were created from. When the most dangerous of the boys are set free, the summer of killing begins. Worse, they hold a secret weapon even more deadly than the terrible evil they carry within. Can Jeff help catch the "monsters" before becoming one himself?

Ted Bundy. The Son of Sam. The Boston Strangler. Albert Fish. Henry Lee Lucas. The DNA of the world’s most notorious serial killers has been cloned by the U.S. Department of Defense to develop a new breed of bioweapon. Now in Phase Three, the program includes dozens of young men who have no clue as to their evil heritage. Playing a twisted game of nature vs. nurture, scientists raise some of the clones with loving families and others in abusive circumstances. But everything changes when the most dangerous boys are set free by their creator. A man with demons of his own, former black ops soldier Shawn Castillo is hot on their trail. But Castillo didn’t count on the quiet young man he finds hiding in an abandoned house—a boy who has just learned he is the clone of Jeffrey Dahmer. As Jeffrey and Castillo race across the country on the trail of the rampaging teens, Castillo must protect the boy who is the embodiment of his biggest fears—and who may also be his last hope. Melding all-too-plausible science and ripped from- the-headlines horror, Cain’s Blood is a stunning debut about the potential for good and evil in us all.