18The Domino Effect
A small glimmer of hope in an increasingly hopeless war against the dead came this season when Jon Snow and co. ventured beyond the wall in the penultimate episode.
They came across a small group of the dead led by a single white walker. Seizing the opportunity to attack without
too much resistance, Jon took on the walker and destroyed him, learning some vital information in the process. By killing the walker, all but one of the undead wights that followed him were destroyed as well. Jon suggests to Jorah that this may have been a result of them all having been "turned" by that specific walker, leaving us all to question just how their magic works. If the domino effect theory proves true, they might be able to avoid the hundred thousand dead wights if they destroy the Night King, who "turned" them all.