"Yeah," said Dean, breath a sore lump in his throat. "I know." The hope that Sam might return wasn't enough to sustain him, not nearly enough, but what could he do? Rage and rail against something that didn't deserve it? There'd be time for that, but Dean's life wasn't just Sam's anymore. He had others to think of, so many others, and so he took a deep breath, and then another, holding himself together for a moment more.