"That reminds me. The you having a couple thousand years on Vikings thing, I mean. Your armor, what's it made out of? I mean, you don't have to tell me if you don't want to," Hiccup had noticed over the past week that the Chief seemed even tighter-lipped than the most taciturn Viking, "but I was an apprentice blacksmith, and I've never seen any metal like it. Though, that's not really saying much. We barely have access to steel, and that's only on accident. We call it Gronckle iron back home."