"At home it's a new opiate they're giving it to morphine addicts," Jack said. "It's in our cough syrups, the good ones at least."

... Victorian drug laws were special.

"I know it's not quite the same here." He'd picked up enough odd references to understand it had been criminalized, which he didn't really feel one way or the other about. It was too far outside his experience. "You were -- dependent on it?"