Zom-B City — Darren Shan

After escaping a secret military complex amid the zombie apocalypse, B roams the streets of a very changed London, dirty and dangerous and eerily quiet, except for the shuffling of the undead. Once again, B must find a way to survive against brain-eating zombies --and now also against those who have seized control of the city. With danger lurking around every corner and no one to trust, B must decide whether to join the creepy Mr. Dowling in exchange for his protection. When everyone around you is dead, where do you turn for help?