The Dead Never Die — John Corwin

To do list: Stop a zombie uprising. Stop the Apocalypse. Resurrect a goddess. They say no good deed goes unpunished, and Cain is living proof of it. His quest to help the gorgon, Dusa, and his favorite bartender, Aura went terribly right and horrifically wrong. Now the sword Soultaker has claimed two more souls and added them to its undead army. Zeus and Mars tell Cain to fix the situation, or they'll erase him permanently along with everyone he cares about. To free souls from Soultaker, Cain needs information from the original Thanatos, Greek god of death. But Thanatos vanished long ago, creating the office of the Grim Reaper which is now occupied by a man named Garrick. Garrick agrees to help Cain find Thanatos, but before they get started, the other three horsemen, War, Pestilence, and Famine put Garrick in a coma so they can they seed the world with plagues, conflict, and starvation and start the apocalypse. Without Death to free the souls of the humans dying from the chaos, their bodies are rising from the dead, killing more humans, and threatening the very fabric of fate itself. Cain reluctantly accepts the mantle of Death so he can stop the zombie apocalypse and use the powers of his new office to find Thanatos. His journey will take him all over the world, to Hell, Hel, and beyond. Dealing with one pantheon was nearly impossible. Now Cain finds himself tangling with the Norse, Greeks, Christians, and of course, minions of the Elder Things. Cthulhu and Shub-Nuggerath were horrific enough, but this new entity is even worse. But there's one thing Cain's enemies didn't count on. If there's an apocalypse, there will be no more mangoritas. No more plastic pirate swords with fruit. No more toothpick umbrellas. The bad guys are about to find out the hard way that no one, not even a god comes between Cain and his mangoritas.