While Meng Gui and Shang He are on their way, Wu Yuan has just stopped trying to use the Mirror of Yearning. The mirror still didn't respond to Wu Yuan's calls. It seems like they are in the deeper, if not the deepest, part of the Heilong Realm. It is reasonable, though, since the Four Demonic Leaders' territories are located in this area.
"It's no good." Wu Yuan spoke as he stared at the Mirror of Yearning.
Fei Yin sighed.
"Could it be – " Wu Yuan raised his head and looked at Fei Yin before his gaze fell on Cheng Sheng. " – this mirror is actually connected to Cheng Sheng?" he asked.
"What do you mean?" Fei Yin asked.
Wu Yuan stared at the Mirror of Yearning in his hand for a long time before he spoke. "When I activated this before, Cheng Sheng was conscious." He said. "But, now, I can't activate it. And he is unconscious." He explained.