Dean looked down, nerves rolling in his stomach so hard that for a moment he thought he might be sick. He sucked down a breath, thinking that he'd almost welcome the distraction if he thought it'd get him out of this conversation.

His brother had started the apocalypse. That wouldn't sit well with Cas any way Dean spun it, and Sam had had a hard enough day already. Looking at Castiel's thunderous face now, though, Dean realized he was probably too late to keep it secret.

"That things have gone to shit back home," he said, watching him. "What'd he tell you?" He doubted it was anymore than Sam had told him, but maybe he didn't know his brother so well anymore.

The thought spun his stomach in another sickening turn.