"Sounds like a happy place," Rat says, deeply sarcastic. It's his actor's training that keeps him from flinching at the idea of human experiments, even as he remembers what it was like to be one himself. Under their lenses, he hadn't even been human, just a sample in a jar to those emotionless, amoral scientists that No. 6 turned out so readily.

"It was after the end of the world. Nice big wall separated the inside and outside, the obedient and the undesirable."

It's easy to summon up all that hatred as vicious as ever. Whatever shape No. 6 is taking now, with that wall destroyed, Rat can't forgive the place what it was and what it did to him.