"I need rest above all else," he answers. Well, maybe not everything else. "I have simply extended myself too far, but I... well." Glacius already knows, as Carlisle just admitted it -- he'd have done anything to save him.

It may be relatively dark in the room, but Carlisle can pick up on the alien's weariness, and knows well enough that Glacius probably watched over him for as long as he was unconscious. "How long was I out?"