Obsidian? [She's a bit confused by his comments. Perhaps they were difficult to mine for, but obsidian was nothing wholly unique in where it might be found. Trade and export had been something she paid great attention to in Meereen, but even without this knowledge, she knew Asshai freely gave obsidian as gifts or sold in the great marketplaces.] Doesn't Westeros trade with Asshai? If you speak with the maesters in Oldtown, I would imagine they could help you procure more, as well as find the caches that should be in Westeros.

Dragonstone has its fair share, I've heard, but I think there were others? [Where had she read that? It was in some book or another.] You are much more likely to be supplied by the traders from Asshai. I don't doubt that they would know something of the Others.

[Longclaw. That name is familiar to her, but she can't place why. Jorah never fully spoke of his family blade. There were stories about the great Houses that had their famous swords, but Viserys never shared those. Gods, but what she would give for Blackfyre or Dark Sister.]

That is your Valyrian steel sword?