Metatron looked around and basked in the knowledge of being the only angel left in heaven. This was everything he ever wanted since he had to flee his home, next to reading the only thing he was looking forward to.
He settled on a chair in a heaven that resembled a giant library and sorted the books he wanted to read. Perhaps it was time to learn what else happened during his stay on earth from a different perspective than Castiels.
The books he wanted to read were laying in-front of him, all ordered and waiting: Supernatural by Carver Edlund