[A SONG OF ICE AND FIRE/GAME OF THRONES] SPOILERS: about the shows earlier seasons and some info about the book

To be completely honest this theory may not even be anything and I probably should read the books but I don't have much time these days so I settle for the show.My theory is that the night king already has the power to bring down the wall and wreak havoc. I was re-watching some of the previous seasons (season 3 episode 8) because it was on tv for the marathon. While I was watching this episode I noticed that while Jon and them are north of the wall at the fist of the first men they dig up a sac of dragon glass with a horn in it.With some knowledge of the books, I remembered the horn of Joramun and how it can bring down the wall but kill whoever uses it. I would be lead to believe that this horn in this sac that Jon overlooks is the horn of Joramun.With that said they end up bringing this sac to Hardhome and lose it in the battle that happened there. This is why I believe that the night king already has the ability to bring down the wall.Thoughts? I'm not sure if this has already been brought up or not or even if it's even relevant considering it may just be a regular horn. via /r/FanTheories http://ift.tt/2rRV1ou