Book 2 Demon Squad Series.
Armageddon averted, the world returns to business as usual. Unfortunately for Frank "Triggaltheron" Trigg, business as usual sucks.
His night out interrupted by a horde of kidnapping zombies, what could possibly be worse? The resurrection of the Anti-Christ, that's what. Caught in the middle of a supernatural pissing match between the Devil's wife, a legion of undead, and an overachieving necromancer, Frank must survive long enough to stop Hell from being unleashed upon humanity; Again.