Updated: 21st April 2018

The Wall has hidden power on Game of Thronesand its more important than ever

Warning: This article contains spoilers for Game of Thrones season 7.

As Cersei Lannister and Daenerys Targaryen fight amongst each other for the Iron Throne, Jon Snow has been preparing for a much bigger threat on their doorstep. And the main reason the Night King and his army havent already taken over Westeros is that something has been standing in their way since long before the Seven Kingdoms existed.

Located at the northern edge of Westeros, the Wall has been a part of Game of Thrones since the very beginning. Its one of the few constants in every Game of Thrones opening sequence, which animates Castle Black and the Wall. Its also one of the single largest features of Westeros. It peaks at around 700 feet (roughly two football fields stacked end to end) and spans 300 miles across the northern border of Westeros. (That’s just shy of the distance between Chicago and Cleveland.)

Its weathered through thousands of years of wear and tear and the occasional climb by daring wildlings. Although men expanded it over thousands of years, theres always been something not quite human about the Wall. And long before Bran Stark ever encountered the Night King, many fans have been convinced that one day it wouldfall.

Dont knock it down while Im gone, Jon joked to Edd Tollett last season.

For now, the Wall still stands. But the Night King marches south, and as Jon told Dany in the episode preview for Eastwatch, Bran saw the Night King and his army approaching Eastwatch-by-the-Sea, the easternmost castle maintained by the Nights Watch in Westeros. How much longer will it last?

The Walls origins are linked to legendand the Nights Watch

With the threat of the Night King, the White Walkers, and an army of wights approaching, characters have referenced The Long Night, a legendary and harsh winter that lasted a generation, in every episode so far this season. Its an important point in Westerosi history not only because it can warn everyone of what might happen to them, but because of what came out of it.

During that winter, which took place approximately 8,000 years before the beginning of Game of Thrones, the White Walkers (who were created by the children of the forest) descended onto Westeros. It was only after the children, the First Men, and a legendary figure who mightve been Azor Ahai teamed up fight against the White Walkers that they defeated them. That final fight, called the Battle for the Dawn, drove them back far north. Once the threat of the White Walkers disappeared, the survivors made sure to protect themselves in case it were to ever happen again: both the Nights Watch and the Wall came out of the Long Night. Its hard to mention one without the other, because the Nights Watch resides at the bottom of the Wall, guards it, and fixes it when cracks appear or ice chunks break free.

Photo via HBO

At the height of the Nights Watch, it could easily man all 19 of the castles located at the foot of the Wall, but that was a long time ago. Only three castlesShadow Tower, Castle Black, and Eastwatch-by-the-Seaare manned thousands of years later, and by the start of Game of Thrones,the Nights Watch has lost most of its glory. Many of the sworn brothers are thieves, rapists, and murderers who are essentially sentenced to join, although some recruits are essentially forced to join by their families. Few choose to join. As Maester Aemon Targaryen put it to Tyrion in season 1, the Nights Watch has become an army of undisciplined boys and tired old men.

The thinly stretched Nights Watch only won the battle against Mance Rayders wildling army because Stannis Baratheons army intervened. Theyre even less prepared for the very real threat of White Walkers and wights approaching their doorstep, a mission that many of the brothers had forgotten because their origins had turned into myth.

The Night’s Watch has forgotten its true purpose, Tarly, Jeor Mormont said to Samwell Tarly in A Storm of Swords. You don’t build a wall seven hundred feet high to keep savages in skins from stealing women. The Wall was made to guard the realms of men … and not against other men, which is all the wildlings are when you come right down to it. Too many years, Tarly, too many hundreds and thousands of years. We lost sight of the true enemy.

Photo via HBO

A Stark and (possibly) some children and giants raise a Wall

Like the Long Night itself, the actual story behind the creation of the Wall is mostly lost to the passage of time. The common story heard by children of Westeros is that it involved Brandon (Stark) the Builder, magic woven into structure itself, and giants.

The World of Ice and Fire also alludes to that legend, although its in-universe author, Maester Yandel, doubts the validity of the claim.

Legend has it that the giants helped raise the the Wall, using their great strength to wrestle the blocks of ice into place. There may be some truth to this though the stories make the giants out to be far larger and more powerful than they truly were. These same legends also say that the children of the forestwho did not themselves build walls of either ice or stonewould contribute their magic to the construction. But the legends, as always, are of dubious value.

According to the works of another maester, Brandon the Builderthe founder of House Starksought out the Children of the Forest to help him raise the Wall with their magic. Hes credited not only with building the Wall, but also parts of Winterfell and Storms End among other feats, leading some to believe that the extent of his lifes work has been exaggerated. Hes why Brandon is such a popular Stark name.Neds older brother was a Brandon,murdered by King Aerys II Targaryen, and there’s also Bran himself.

Parts of the Wall were made of stone, while much of it was believed to be built with blocks of ice taken from the haunted forest north of where the Wall. It contains tunnels for the Nights Watch to move around and through it, and its wide enough at the top that 12 knights in armor could ride on horses across it. George R.R. Martin said in 2000 that theres more ice than stone in the Wall and took thousands of years of building to get to its incredible size.

Screengrab via Game of Thrones/HBO

As for how true any of this is, Martin doesnt say for certain. How the Wall came to be is something of a Westerosi legend comparable to legendary figureswho may have never existed.

The magic embedded deep within the ice

As Martin hintedand we see in both Game of Thrones and A Song of Ice and Firepure ice isnt the only thing incorporated into the Wall. In Sams narration about the history of the Wall, which is part of Game of Thronesanimated Histories & Lore Blu-ray series, he hints at the Walls treacherous nature against those who attempt to climb it. Jon also believed that Wall had protections after witnessing wildlings fall to their deaths as he climbed it with them in A Storm of Swords; the experience led Ygritte to tell Jon that it was made o blood.

But the largest and (so far) unexplored kind of protection is part of the fundamental reason it was built in the first place. Its not to keep wildlings from entering Westeros, though it often does that, but to keep the dead out.

Beyond the Wall the monsters live, and the giants and ghouls… but they cannot pass so long as the Wall stands strong and the men of the Nights Watch are true, Bran recalled Old Nan telling him in A Dance With Dragons.

Photo via HBO

We first see the extent of the Walls protections in A Storm of Swords after a mysterious creature who resembles a wight saves Sam and Gilly from wights beyond the Wall. Gilly calls him Coldhands, and he tasks Sam with bringing Bran and his companions to him through the Black Gate at Nightfort, one of the 19 Nights Watch castles, because the Walls magic prevents him from crossing the Wall.Although Coldhands is an ally to Bran, Meera and Jojen Reed, Hodor, and Summer, he is also unable to enter the entrance of the Three-Eyed Ravens cave when the arrive in A Dance With Dragons because of magical protections.

Game of Thrones took a different approach to the introduction of the Walls magic. We see first-hand that wights cannot enter the Three-Eyed Ravens cave in The Children: their bodies exploded as they attempted to enter the cave after Bran, Meera, Hodor, and Summer. The protections of the cave kept Bran hidden from the Night King until he touched Brans arm in the episode The Door. With the protection barrier down, it didnt take long for the Night King and his army to follow.

And when Meera couldnt take Bran any further, a pale figure dressed in black rode in and saved him. Bran later recognized him as his uncle Benjen Stark, who hadnt been seen since season 1. The White Walkers stabbed him, but the children of the forest put dragonglass in his heart to stop him from turning. Although Benjen doesnt appear to be Coldhands in the books, he returns as the Coldhands-like figure for the show.

Photo via Helen Sloan/HBO

And like Coldhands, Benjen cant go past the Walleven though he still fights for the living.

The Wall is not just ice and stone, Benjen said. Ancient spells were carved into its foundations. Strong magic to protect men from what lies beyond. And while it stands, the dead cannot pass. I cannot pass.

“He’s coming for us. For all of us.”

The Wall has withstood the test of time, but as the Night King approaches, the question of whether it can be taken down is more vital than ever.

In Martins books, there is a legendary horn called the Horn of Winter (or the Horn of Joramun, named after the first King-Beyond-the-Wall) that reportedly would wake the giants from the earth and bring down the Wall. Mance Rayder claimed to have it during the Battle of Castle Black and threatened to order Tormund Giantsbane to blow it if the Night’s Watch didn’t allow the wildings to pass through the Wall. The horn burns in a pyre, but Tormund later reveals it was a fake.

However, some fans believe that the horn has been hiding in plain sight the entire time. An old warhorn is discovered with spears and arrowheads made of dragonglass at the Fist of the First Men in season 2. The warhorn doesnt appear to have played any role sinceand the Horn of Winter as a legend doesnt exist in the showbut considering weve seen old weapons reappear before, theres always the smallest of possibilities it could return.

Others suspect that the mark on Bran’s arm from the Night King, which brought down the protections surrounding the Three-Eyed Ravens cave, could also remove the Walls protections. Its a sound theory, but one we havent been able to test in part because we havent seen the Wall since Bran and Meera crossed it in the season 7 premiere. And we cant imagine either Bran or Meera keeping that news to themselves after arriving in Winterfell so if Brans mark has anything to do with it, its not the only piece of the puzzle.

So far this season weve been kept in the dark about the Night Kings plan aside from what we hear in the preview. Hes got an Army of the Dead that can grow with more recruits, and time and winter are on his side. One way or another, hes going to try getting through.

The question is, will he take the Wall down with him when he does?

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