14. WHAT’S WITH DRAGONGLASS?
It was recently revealed that dragonglass (obsidian) was the material the Children of the Forest used to create the White Walkers, but we should also remember that dragonglass is also capable of killing White Walkers, as we saw in the season three episode “Second Sons” (written by Benioff and Weiss). A lot of it was lost in “Hardhome” when the Wildlings and brothers of the Night’s Watch fled the attack, but all may not be lost. Stannis did tell Samwell Tarly in the season five episode “Kill the Boy” (written by Bryan Cogman) that dragonglass is abundant in Dragonstone.
More and more the odds of survival against the White Walkers look better with every season. Now all that needs to happen is for Westeros to get its act together so they can muster up a large enough force to properly deal with the Night King and his horde of undead wights.