We've got this fantasy world. In this world, we've got a couple of gods and one Angel. The two gods have a war, both end up out of comission by the end of it, and the Angel suddenly inherits the title of a God by default. Khim, that's his name, is the "God" of Death. Khim has some servants, known as the Arch-Fae, who lead souls to him.
The legend as it is states that sometime during the War of the Gods, the earth became poisoned, and the bodies of the dead rose and continued their battle (that's what the legend is, I'm not entirely certain on the real reason for it or who's really responsible). Essentially, people became zombies about a day after they died. Khim was kind of pissed about this, since death was his domain, and he was like "Oh HELL no" and changed the rules a little. Instead of just guiding souls to him, he instructed his Arch-Fae now to get rid of the bodies of the dead as well. Dissolve them back into their base elements upon death, so basically when people die, their bodies kind of fade into the air a few seconds after.
This leaves me with some problems. One, unless there was something specifically denoting that it only happens to humans (or I guess sentient creatures, since there's more than just humans here), nobody would be able to eat meat. There's an entire part of the food chain completely gone, which doesn't make any sense, especially with some of the creature designs I have (herbivores don't evolve with fangs and claws when there are no carnivores to protect against, you know?) Two, they'd have no way of knowing when people died or when they'd just run off someplace; that makes it like a million times easier to fake deaths, not to mention it makes serial killers almost always able to get away with it (which is important because one of my characters is, in fact, a serial killer).
I like this idea, but as I said, it's giving me problems. I really don't want to ditch it or change it entirely, because I want this sort of...feeling of nobody ever having seen a dead body before. (Because there's a plot point later on where I'm planning on using it for effect; one of the Arch-Fae fucks it up intentionally, basically, and the characters freak out because they've never seen it before.)
Anybody have any suggestions on how I should handle this? I was kind of playing with the idea of the Arch-Fae leaving behind a crystal or something to denote the body they'd taken, but how would that be identified? Special magic, maybe? Would that seem too...outside the realm of possibility to be believable?