I haven’t reread it since the last book was released. Been waiting for it to be fresh. 

I thought Tarna was somewhat unlikely because she just walked out of the building Nynaeve was standing beside a few minutes earlier, but she's possible. Moghedien's unlikely. It wasn't Aran'gar, since she was only introduced in LOC30. Maybe Areina? It seemed like the Nicola-Areina plotline was one Jordan was never sure what to do with.

I also thought Aran'gar, the fact the Tarna made mention of Theodrin helping Nynaeve with her block cements it for me.

Hmmm maybe it was Tarna, they did have a scene together the next chapter.

In Lord of Chaos chapter 12 Questions and Answers the last line is "Neither saw the woman watching them from the second story window. "

Who was this watching? I've read it many times and I dont think I remember.

Ahhhhh thx for that

In The Dragon Reborn when Mat meets Queen Morgase; Rahvin is there as well. The Dark One knows what the three Two Rivers boys looks like now as evidenced in The Great Hunt at the Darkfriend meeting. If a Myrdrrall knows what they look like and shows it to the room full of Darkfriends wouldn't it stand to reason that one if not all of the Forsaken would also know what they look like?

It seems odd to me.