After a while;
In the skies of the Ixitus Empire, Zan Rong was seen flying on the top of an undead drake while closely being followed by Mark in his suit. The Divine throne was resting in Mark's inventory as his companion had to lead him to their next destination.
Mark manipulated Zan Rong to abandon her original path and made her follow his way by revealing all the details he could conclude from the quests. As for how he knew all the details? With a straight face, he blatantly lied to her that he extracted memories from the elf before killing him.
Zan Rong also believed him as she knew Mark was someone capable of achieving unimaginable feats. Furthermore, she had to rely on him now that their world has fallen and she wasn't sure if her allies are still alive or not.
Hence, despite her disgust toward undead beings, she still cooperated with him and flew on top of the undead drake and acted as the guide.