"Yeah... but I think there'd be traces of them left behind. I don't mean the staged blood, either. There ain't a person alive who doesn't leave trace evidence behind 'em, and even Calhoun can't clean everything. Unfamiliar hairs, bits of fabric, and so on..."

Heiji... really hoped there weren't multiple groups of people in here. "Kind of another point in favor of this bein' underground somewhere, innit? It'd be easier to conceal something like a bunker than a giant aboveground complex."