The Valensi Protocol

Detective Sean Byrne thought he’d seen every kind of monster the city could birth, until a killer's signature spans a hundred years. His only suspect is a ghost, an impossibly old predator hiding in plain sight. To hunt this new breed of monster, Byrne must ally with a creature of the night, a brilliant biochemist who reveals the chilling truth: vampires are not myth, but a biological reality. In a world governed by a protocol of blood and science, Byrne must walk the line between hunter and prey, before he becomes the next experiment.