[Well. That is.. a very disturbing possibility, it's true.]

I'm not seeing signs that there was a fight in here. [If bodies were dragged out, then there would probably signs of a struggle with whatever killed them. Although this far after the fact--because it's clearly many, many years after the fact--they may not be able to tell the difference between that and the ravages of time.] I suppose they could have run to shelter somewhere that--failed them.

But they also could have made their escape. I don't think that's so far out of the realm of possibility.