Talk:Child of the Elder Blood/@comment-172.222.247.4-20181001230920/@comment-27075564-20181002014054

The only thing I can guess is from the books where the Lodge were together and discussing the Elder Blood at length, though from what I can gather Yen didn't have a hand it, just simply knew about it to a degree (Triss' thoughts was that Yen had a personal hand in it but this appeared to be an incorrect assumption as Triss didn't know the full backstory).