Dean swung the scythe around, hitting Death without hesitation. Short lived genuine surprise was in his dark orbs, looking into the darkened and even confused eyes of the elder Winchester brother. Peace and surprise turned to ash, crumpling to the ground with the scythe. If it was possible, then Death was truly dead.
Lightning came from the ceiling, striking his arm where the Mark had been placed. Within seconds the lightning was gone, returning to the ceiling and skies above almost as though Heaven had reclaimed Cain's Mark and taken it to its rightful place. Dean Winchester bears the Mark no more, it is gone. And another as well.
Death stood in a large, almost grand, library. Filled with thousands of books, both human and biblical. "You know what happens next don't you? The Darkness?" a familiar voice asked from behind him. It was rhetorical yet serious at the same time.
The moment he turned around, facing the person behind him, brown eyes met pale blue ones. Blinking away any possible questions and reasoning, Death stared at the man before him. "Hello, old friend," he spoke, making a chuckle come from the one and only author of the Winchester Gospels and the one and only He.