Samwell tells Bran of Rhaegar's secret wedding and the Three-Eyed-Raven (who knew that Jon was Lyanna and Rhaegar's son but didn't know about Jon's parents' wedding) decides he should go see for himself.
Before the episode's big battle, Jon and his men have a short fight with a small group of wights led by a White Walker.
More evidence that suggests the spot where the Night King killed Viserion wasn't mere coincidence - as a Greenseer, he'd have been able to foresee both the dragons coming and the spot with the chains and the ice lake (so Viserion would be submerged and unable to be burned by Jon Snow and company) as the flawless confluence of factors in procuring an ice dragon.
Bran warged into that man in an attempt to persuade them not to go through the process that would create the White Walkers.
White Walkers are more than simply once-dead warriors.
But the most important piece in the puzzle is when Bran has the vision of when the Night King was Born, as explained by YouTuber Game of Theories a few months ago. Although the show haven't given fans a definitive answer as to how any of this is possible, we do know that the first White Walker was created by the Children of the Forest after piercing the heart of the First Man with dragonglass.More news: Majority of USA voters fear Trump will drag country into global conflict
Three of the White Walkers are equipped with one of these: the ultimate, state-of-the-art, anti-dragon ballistics - one for each dragon. With a significant addition to his army, fans have started to wonder how he's able to control the undead in the first place. They may look human-like, but they have wispy white hair, otherworldly pale skin and terrifying ice-blue eyes. Wights seem to be the least intelligent of the hierarchy and appear to take orders from their White Walker superiors. Because it's bad enough that the Night King has an army that only grown the more it kills their enemies, but knowing what's going to happen before you do? "Kill him", Beric says. Well, it turns out they might be on to something.
Or maybe one of the reasons the White Walkers needed such a massive army was because they are planning to use their massive numbers to form a ramp out of their bodies. Even if Jon and the others were to get close enough, it's hard to say what they could use to actually take down the Night King once and for all. This means any Game Of Thrones Night King theory is fair game. It's unclear whether he is equally vulnerable to these weapons or if he has some sort of immunity to them.
The Night King will fly over it on Viserion, destroying the Wall's protective magic.. The Night King knew when Bran was viewing his army, and is able to grab Bran's arm through the telepathic link.
With just seven episodes to go before the epic HBO fantasy show wraps up, theories have filled the internet since the trailer aired last week with one suggesting Kit Harington's Jon will discover his true heritage.
The ridiculousness began as soon as Jon Snow and his merry band of wight-hunters began their trek north of the Wall in search of a reanimated corpse to capture and bring back to Cersei.
This Drake and "Game of Thrones" mashup is the greatest thing you will see all week.