Author: Atarah al'Norahn
She is gray-haired.
While walking through the Shaido camp, Faile sees a lean man talking to her, asking a question about his horse. All of the Wise Ones who can channel are all looking off into the same direction in shock, no doubt at the amount of saidar being used to cleanse saidin, though they don't know what is happening. Masalin, as she cannot channel, does not react.
(Reference: Crossroads of Twilight, Chapter 9)