I think she is trying to help Haley in her search, by suggesting another shop she can look into – perhaps one with history books or something.
It is very unlikely that this shop is Zzdtri's and Sabine's fortune teller shop, since they must have had that in Bleedingham, Empire of Blood, and Haley and the cartographer is in Sandsedge, quite far away from that.

I find "NPC shopkeeper dialog and not much else" to be the most plausible theory yet, I'm afraid.