Dead of Night: A Zombie Novel (Dead of Night Series, 1) by Jonathan Maberry

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A prison doctor injects a condemned serial killer with a formula designed to keep his consciousness awake while his body rots in the grave. But all drugs have unforeseen side-effects. Before he could be buried, the killer wakes up. Hungry. Infected. Contagious. This is the way the world ends. Not with a bang…but a bite.