[ Matt's agreeing sound is half a laugh, half a murmur. He has no idea what he's in for, it's true--but you know, when does he ever? The prospect of learning, sharing, and magic dangle before him, three of his very favorite things in the remnants of the universe, and for now, that's enough.

He follows Sebastian's gaze, his own expression softening. ]

I hate to step on anybody's whimsy. But it's true that we do ... need you, over here. So sooner is probably better. [ For a moment, Matt looks somewhere between wistful and sad. But he shakes himself out of it, mustering one more smile. ] I'm gonna stay here for a little while longer. But I'll catch you on the other side.