Ah. Right. Her sense of smell. There's no mistaking Bill Cipher's scent, it's unique even for the Barge, and Ford has personal experience with just what it's like to have her olfactory powers.

"Yes," he says. "I let him in myself."

Oh boy. Is this conversation about to happen? It's probably about to happen. It's going to be embarrassing, and personal, but less so than if it came out during a flood, and maybe when it's over he and Bill can stop sneaking around. Maybe. If this goes well.