Istredd only has a vague idea of the other two himself. He knows they were romantically involved and it ended, and that Geralt did not know she was alive. His connection with Geralt was completely separated from her existence in their pasts, although he wonders now if coincidence is ever possible when Cirilla is in the mix. A child of prophecy, connected to all three of them now, him more obscurely. For them all to be here even stranger. Cagey is definitely required.

Yennefer is private and he has already been taken to task for being so open about their history. The being raised in the same place part of it, at least. What's done is done though. He wants her to have visible allies, despite her wariness. She shouldn't have to be alone. If Thancred is another ally, all the better.

"Perhaps, but we are all spread out as well. One would think Thorne would get everyone from one world if they tapped into it. There is always the possibility the spell is connecting sharply to spheres with the most magic or power, but then you get people without any."

Istredd does wonder if they'll ever get an answer. Years down the road, if they are all there, will they ever be told? Or will there be a way to find out? He wonders. Until then it's all conjecture. "If they had control over the spell they would bring only people who will be loyal and useful to them. Otherwise they get a situation like this."

Meaning the Summoned meeting in secret to talk about how dangerous Thorne is. No loyalists here.