Originally Posted by RedDread
It's something that will be revealed later, so yes it is a spoiler.
...and I'll leave it at that.
Sorry thought we could talk about things that already happened in the show. I didnt think that them knowing the language would really be a spoiler since it was known from the beginning of negotiations in the books. But I will error on the safe side from now on so I don't ruin any of martins great story telling