The Ghost Lantern illuminated the two Chen Nangxiu Masters, revealing varying degrees of corrosive "marks" on their bodies. Comparatively, the marks on Chen Nang were more severe, as he was closer.
Yang Xiao chose to save Chen Nang first, as he was, in a sense, truly one of his own.
However, in the process of using the Ghost Lantern to dissipate the "marks," Yang Xiao realized that the situation was far more troublesome than he had imagined. Using the Ghost Lantern for his own evil exorcism and for others were two completely different concepts, and the spiritual power consumed was exponentially greater. A similar situation had occurred before when the Yi Sect sought out Yang Xiao to heal Jiang Qingluan.
Even more troubling was that as spiritual power was heavily consumed, the Mirror World also became unstable. At this rate, not to mention healing both people, he was afraid that he wouldn't even be able to cure just Chen Nang before being countered by the Soul-Capturing Mirror.
