User blog comment:BrocktonBlocbuster/Stannis in the Finale (S5E10 Spoilers)/@comment-122.62.53.39-20150718115942

My theory: Brienne lets Stannis take the black. They arrive at Castle Black just as Melisandre is reviving Jon. A furious Stannis kills Melisandre with a swordthrust to the heart, the sword becomes the true 'Lightbringer' and Stannis is revealed as Azor Ahai reborn. Melisandre was right, Stannis betrayed everything that he loved and it will all be worth it.