Jones grins. "One should always be prepared for death," she says. "The name's Jones. Into the breach, then." She takes a deep breath, and carefully steps over the trails of gerbil-sized ants going to and fro to step inside. Hopefully somewhere that didn't have any ants on it. There was just something distressing about stepping on something alive that was the size of your hand.

And then she's through. And looks like they're not all over the floor, in any case, although there seems to be certain paths they're traveling regularly. "Come on," she says, poking her head around the door. "It's safe over here."