The cultist with a white split mask was chatting outside Yelverton Manor to a cultist with an elaborate red headdress. He was talking to her about the Book of Lasih.
Later, after the cultists went downstairs, he was found sitting naked in a chair watching the cultist with the swirl mask and the cultist with the scales mask having sex.
Eventually he is found in Lusst'ghaa, injured but having sex with another male cultist.