Matthew stills, just for a moment, when that flash of anger crosses Death's face. He wonders for a moment if he's pushed him too far, but no - it's not Matthew Death is angry with, it's Tower.

Still, it's a reminder. For all the promises of being sent home, of non-interference, they are not the one in the room with all the power. They are not the one who can make life very, very difficult for the other if they want to.

"I never had any intention of letting Tower win," he says quietly. "But who shouldn't win is a different question from who should. So if you don't want to interfere with our worlds, what do you want to interfere with? Worlds that we don't happen to live in? Something else entirely? If it's just this game that you're ending, what are you lot all going to do afterwards?"