Twice in my bowhunting life I have personally witnessed a deer run off with the arrow sticking out both sides of the animal, under the spine, and the deer was never recovered.

The first time this happened I watched the buck (with an arrow protruding from both sides) hang around a doe about seventy yards away in an open field, for at least a half hour to forty-five minutes. He showed no ill effects, never laid down, and was never found regardless of the lengthy search.

It really doesn't matter if a person labels it "no man's land", "Burmuda Triangle", "black hole", or a "void". The latter may not be anatomically correct however the fact remains that there is too much real evidence to deny that a small area exists under the spine, where, if hit, an animal could be lost or survive impact.

If a human can survive a knife being thrust down through the brain, with almost no ill effects, I don't think it is too much of a stretch to believe a whitetail can survive a passthrough in this area.