Game Of Thrones Season 7: 8 Things You Might've Missed In 'Beyond The Wall'

4. The Many Ways It Changed The White Walkers

Beyond The Wall featured one of the biggest looks yet at the White Walkers, and also included some new rules that could be very important going forwards. Most of them are things we see happen, but it's worth recalling all of them, since this is where the story is headed.

The first new rule is that if you kill a White Walker, the wights under his command also fall. It's different to what we saw at Hardhome, although then we were much more focused on the fight between Jon and the Walker, and maybe he didn't have any under his control.

This, in turn, suggests other White Walkers can raise the dead, when previously we've just seen the Night King do this. It isn't explicit, but it's either that or, after he brings them back, he gives his fellow White Walkers certain garrisons of the dead army to control. It also means that, essentially, they *just* need to kill the Night King, but that's nowhere near as easy as it sounds, and it doesn't even sound easy at all.

In previous years, fire has been used to kill wights, and we see that again here, but it also seems dragonglass and Valyrian steel get the job done too.

A wight, meanwhile, is brought across the Wall, even though the dead allegedly cannot pass. The ones at Castle Black didn't reanimate until after they'd been brought in, so presumably that was why that happened, but this raises new questions. Can wights pass the Wall? Is it because he was flown over? Or has the magic really been broken by Bran?