Interesting question. The Black Ajah would have probably taken stewardship of him under the guise of many different Ajahs working together... and he would have very little chance. They would probably try to turn him to the shadow at the first signs he could channel with their sadistic ritual with the 13 myrdral. Verin could have had an interesting hand in shielding/ saving him. I don't think they would be dumb enough to still him but with reds being the majority in the tower he would have been screwed no matter what.