Laughing like a maniac, the Doctor revolves back into the spaceship. He calls for Rose and Mickey, but there's no answer. Still feeling twitchy, he mutters and bitches that the very first rule is "Don't wander off," and that there could be anything on the ship, such as horrible clown robots or what-have-you, and then he runs into a horse. Which I gather is meant to be funny, a horse on a spaceship, but I don't get it. The Doctor blinks at the horse, and it whinnies at him.
Mickey does all manner of dashing, ridiculous heroic moves, dropping and rolling and such, and it's hilarious, and he finally notices a surveillance camera, which moves toward him and then blinks. "Are you looking at me?" Mickey asks. It is, and it jumps closer, right in his face. Mickey squeaks and jerks back: the camera's lens is a human eyeball. Gross. That's so the opposite of Captain Jack. Mickey calls Rose over and is grossed out: "Look at this. That's an eye in there. That's a real eye." The camera disappears into the wall, and there's the sound of a heartbeat somewhere close by. Rose locates a panel in the bulkhead, but it burns her at first. She tries again and gets the panel off: behind it is a human heart, wires and pipes and things all around. Mickey is so grossed out that he can't even identify it, but Rose swallows some bile and fills him in: "That's a heart, Mickey...That's a human heart." So we've got a fantastical fireplace that seems to poke about in Reinette's life at random, evil killer robots waiting for her to be "complete," and a spaceship made with human body parts. Things do not look well for the uncrowned Queen of France. Or rather, for history itself, considering we know exactly how and where she died.