Nathan lurches away from him.

"That was by far the weirdest sensory experience I've ever had," he says. "Sorry about that."

"You could get thirstlessness like I did," Alice says. "It's more comfortable anyway."

"No thanks," says Nathan. "I don't think many people are going to show up all synaesthetic sugar that bypasses my air filter, and sometimes I want to be a little thirsty. Right, babe?" He winks at the Joker.