User blog comment:Twilight Despair 5/Tablet Theories/@comment-850810-20130515012558

I like the theory. I recently read a fanfiction story called The Human Tablet where a third tablet is located, one for humans and it presents another solution: to close the Gates of Earth. It would seal Earth off from Heaven, Hell and Purgatory, though it wouldn't get rid of the demons, angels and monsters, just strand them here. In the story, Dean decides to do the trials to save Sam and Cas, but Kevin is indicated to decide to do them instead because Dean will never do them once he knows what's required: he has to kill his closest relation (Sam) and his closest friend (Cas) to close the Gates. It's only a one-shot sadly, but Kevin's intent is suggested by the fact that he frees the unconscious Sam and Cas from where Dean stashed them and takes a gun and knife, hoping that his mother (his closest relative) and Garth (presumably his closest friend) will forgive him.