"You're from his world?" Okay, that helped make things a little bit easier. When people didn't know what others were dealing with in their world, it made it a little too difficult to figure things out.

But no one had told him that he was actually dead. But alive dead. Sort of. So when he didn't hear a pulse through the stethoscope, he knew he needed to start CPR.

Problem was... the thing. Core. What was that? It made him pause, looking back at Teito. "I can't get to his heart with this in the way, what is this?"