Game of Thrones season 7 revealed a White Walker twist that changes everything

This development evens the playing field slightly

The latest episode of Game of Thrones season seven - read our review here - featured many revelatory moments that will change the face of the series going into, not just its final episode (which may or may not feature these three huge twists) but the final season also.

One such development has really switched things up in terms of the forthcoming battle against the White Walkers which has intensified following the undead's acquisition of Daenerys' poor dragon, Viserion, into their army (a moment which confirmed a long-running prophecy in the most chilling way possible).

Halfway through 'Beyond the Wall' - which sees Jon Snow lead an expedition North of the Wall to capture a Wight in a bid to prove their existence to Cersei Lannister - it's discovered that killing a White Walker will also dispatch of any other Wights that particular Walker created. Case in point: when Snow kills one with Longclaw, countless others crumble into dust.

This development sees Beric Dondarrion draw the conclusion that all they have to do is kill the Night King who presumably created all White Walkers.

So, how does one achieve such a feat? Well, fans know the two weapons that can see them off is Valyrian steel and dragonlass (fire, rather frustratingly, doesn't work on the Night King).

A stroke of fortune here is that Gendry (Joe Dempsie) is back in the fold, the skilled blacksmith son of Robert Baratheon who was taught by one of the only people who could successfully forge Valyrian steel (according to Tywin Lannister, anyway).

It seems if the Night King is to wreak destruction, he has a hell of a fight up against him - especially if Snow, Daenerys and Tyrion can convince Cersei of their threat. Of course, if the theory suggesting the Night King is Bran Stark, Jon's going to have a bit of a dilemma on his hands.

Game of Thrones airs in the US on HBO every Sunday where it is simulcast in the UK on Sky Atlantic at 2am. It is repeated that same evening on both Sky Atlantic and NOW TV.

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