User blog comment:Twilight Despair 5/Hell Trial Theories/@comment-82.34.210.166-20130405035354

I would have thought that SAm had to give an encohian spell after free a spirit, just like with the Hellhound.

The next seal/trial has to involve a demon, specificly a crossroads demon, most likly the king. In a crossroad deal, there  are three beings involved, the hellhound to take the soul, the soul and the demon. The two trials un did two parts, the third either kill a demon or make it break a deal.

THe thing that worries me is crowley said that his half of the tablet has all the boring stuff, while the good stuff is with kevin. SO are we sure these trials will be the ones needed to seal hell. So of like how castiel believed purgatory would be the solution to all his problems, it turned out to be really bad.