Ryder wants to be more than a lab rat; he wants to be free.
Katie wants him to save the world.
Purists want him dead.
A supervirus threatens to wipe out the human population.
The only hope for the future is a cure hidden inside Ryder Stone. Created in a lab and brutalized, betrayed and hated by humans, Ryder yearns for freedom. Outside, a group of human genetic purists want him dead.
When Katie Marsh, a brilliant young geneticist, discovers his secret, she must fight to protect Ryder, gain his trust...and convince him to save humanity before the purists destroy them both.
Originally titled The Venom of Vipers