Catherine Davis

Zoe Hull, 17, uses her wits, survival skills, and compassion to fight for her life, and the lives of her classmates, against a group of live-streaming school shooters.

Alone and trapped in a locked-down hospital, an injured young woman must escape a pair of vicious killers who are after the only piece of evidence that can implicate them in a grisly murder, the bullet in her leg.

Caleb, a former government assassin in hiding, who resurfaces when his protégé, the equally deadly killer known as Banshee, discovers a bounty has been placed on Caleb's head.