I belive good o'l Fel found out somthing very dangerous to the Forsaken,and the Dark One.Such as how to seal him for all time, stop the ages from repeating there strugle agist him,or allowRand some incredible advantage over the Dark One.The last time Rand went to meet him fel said he thought he was close to discovering somthing about the Wheel,the Pattern,the Forsaken,and the cycle of the Dark One.I get this theory because of a few simple facts: One-Fel was just a weak old man who had discovered somthing very importent about the pattern. Two-There are only 6 Gholom in the entire world(3male,3female) so why would anyone send such a rare,deadly,and extremly valuable assassin after an old scholor? Three-He must have found somthing,or talked to somone heshouldent because only Moridin,Shadr Hurin,or one of the Forsaken could have sent the Gholom,and they wouldent without good reason, because they take little interest in "mortal fools.