I would recruit Skull Knight, a sentient skeleton clad in armor that rides on the back of a flying-undead-demon-horse; wielding an impenetrable shield and sword that could cut through reality itself. I am pretty certain you know why I would choose this character as to defend against the zombies; he alone could probably wipe out the whole zombie horde and the rest of humanity.
Though the book series I am following is great, I don't think it could help me fair against an endless horde of reanimated corpses. Unless I am able to craft a great sword the size of 2 fully grown adults and is able to swing it with enough force to slice through trees. Then it would be a different story.


this is what the character looks like.