He moves then, to take a seat next to Draco as he gives a thoughtful hum. "Before I came here, I was in another place that brought people in from different worlds... and before that, I was traveling around the multiverse with friends. It was a bit-- different, that. We saw what our lives could have been like if we'd made even the most minor choices..."

He gives a wry smile. "What do you know about multiple worlds and universes now?"