Eren thinks about that. Maybe he should go see it, but he couldn't test its healing for himself. He heals all on his own, after all. He's not sure who he could ask. Jean? Marco? He'll just put that somewhere in his mind.

"That's…nuts," he says, because it is. But this whole place is kind of nuts, so what else is new?

"Do you think it could heal more than just your hand?" he asks. His eye. Hange's eye, damaged much longer ago than Levi's. Erwin's arm, even. What's the limit? Will they run out of magic healing water? Those are questions Eren isn't even good at figuring out answers to. That's Hange's kind of thing (and maybe Armin's). He just wonders now.

Someday the bathtub thing will absolutely return to haunt everyone, but today he's successful at shoving that back into half-repression alongside countless other (much worse) memories.

"Can you feel with them?"