so i've been watching Game of Thrones and decided that i need some defence from White Walkers...
I'm in need of some obsidian I know Glen Coe in Scotland's a Volcanic Caldera so in theory there should be Obsidian nocking around that way? I hear the isle of Arran has some but I'm not sure how abundant it is before i commit to a trip up there to find some does anybody know anywhere else you can find some?