He offers commentary on various discoveries, mostly along the lines of are you sure you don't want to try biochemistry? - her entire fridge, after all, has become a petri dish. They fill the garbage bag, and he can't help but whistle at the sight of the bread as it goes in. The mold colonies will continue to eat away at their home someplace else, but they've fallen into a sort of apocalypse without realizing it.

"Tomorrow," Mulder says, tying a knot in the top of the bag. He's already heading toward the door to throw it out, having decided that they've done enough. "Bleach the shelves, and I'll pick up some groceries."

And maybe, the tacit promise, he'll cook dinner after.