I'm just going to leave this thought here, which occurred to me while reading this post and how everyone's saying that they established that magic can't bring back the dead:

Just because the characters say it's true, doesn't mean it is. It could just mean that no one who has tried has ever succeed, and so everyone believes that it's not possible. Or, conversely, it could mean that you can't bring them back whole and as they used to be. Thus, zombies, because as we keep hearing "Magic always comes with a price."

And seriously, between this and the Walking Dead, I just know what's going to be in my nightmares tonight.