Castiel had one ear trained on the conversation taking place on the other side of the room, but for the most part it was introductions and explanations. Are you an elf slipped in there, and he glanced over, noting the stranger with the pointed ears. He'd never seen anything like that -- whatever elves were, they didn't exist on Earth.

He returned his attention to the file. This demon, which had somehow made its way into the institute and onto Landel's staff, had started by showing Dean an image of his brother using his own demonic power to exorcise demons.

It was the sort of thing that would have troubled Dean, considering what point in time he'd been pulled from. This had to be some form of manipulation, as it was what demons always did -- pitting the brothers against each other, digging right into that weak spot with clawed hands.

Reading it was enough to start a steady build of anger, but that only showed in Castiel's tensed shoulders.