From Ashire, Aldritch learnt about an auction taking place within the capital, though, he was bound to find out from Lada or Ingrid soon, after all, they always had such information. That was her main goal of visiting the capital. As for what she came looking for in the auction, it was a piece of jewel rumoured to be from the world beyond the portal. Ashire truly believed that she could find a way to breakthrough her limits with it.
Listening to her, Aldritch could see Sigmund in her, but at the same time he could also see a bit of Khal… maybe Ingrid would be a better comparison, as Ashire showed a desire to improve herself constantly at all cost, while also being an ecstatic researcher and "experimenter". Well, more would need to be known of her before that could be confirmed first.