The difference between these two creatures was more evident than ever in last week's episode "Beyond the Wall", as we discovered that wights are tied to the fate of the white walker that reanimated them. Politics, loyalty and betrayal are all fair game when it comes to gaining, and maintaining control, of the throne.
Perhaps the Night King's plan to break down the Wall (and its magic, even more importantly) depends on getting a wight across, and he knows exactly what he's doing?
So before Sunday's season-seven finale, here are the ways we think the White Walkers might finally make their way into Westeros, from the most plausible methods to the least.
The White Walkers have similar but weaker powers compared to those of the Night King, and have been shown to be more susceptible to weapons like dragonglass and fire. The White Walkers are, quite literally, in the middle of nowhere. In addition to being perplexed by the episode's wonky timeline and those seriously unusual conversations between Arya and Sansa, we also had to wonder how in the hell the Night King appeared to know that Daenerys's dragons would show up to aid Jon Snow.
The Night King is the leader of the villainous White Walkers. One thing is certain - the Night King and the rest of the White Walkers were well prepared for Daenerys and her dragons swooping in to save the day. We know that anything the Night King creates will die with him.
So is the Night King simply a powerful Greenseer that was turned to the side of the White Walkers by the Children?
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The answer to that question could determine whether or not the revelation from "Beyond The Wall" proves to be the final blueprint for how to eliminate the White Walker threat forever. Combining Bran's warging and visions together with whatever icy abilities that the First Men had would easily explain how White Walkers are created, but also how he can warg into Viserion.
The second version of this theory is much different, and involves Bran's actions in the future, rather than the past. This theory suggests that the Night King isn't actually evil, but that he's just fulfilling his objective by matching fire with ice.
Why would Bran be the Night King?
They'll walk around it on the frozen seas near Eastwatch..
Going over the magical Wall (without a dragon) is as lame as going around it, but either of these methods would be aesthetically superior to see-there's just little evidence either will happen. If the life of an individual White Walker determines the existence of individual wights, might the life of the Night King determine the existence of White Walkers? You should not be able to defeat magic by loophole. We can't have you messing around like that so close to the season finale.