Chapter 622: Entering Poison Fog Island

Upon learning that the Desolate Heavenly Emperor once cultivated for a long time in the Ancient Sword Ruins, Yang Xiaotian couldn't help but be curious. Could it be that the Ancient Sword Ruins held some secret?

Otherwise, with the strength of the Desolate Heavenly Emperor, it would not have been possible for him to stay in the Ancient Sword Ruins for such a long time.

"Actually, my mentor, the Immortal Sword God, also entered the Ancient Sword Ruins," Yuan Wei said.

The Immortal Sword God was Yuan Wei's mentor, which took Yang Xiaotian by surprise.

He had learned from the Qi Tian Medicine God that three million years ago, the Immortal Sword God had also opened the Divine Dragon Hall.

"What happened to Immortal Senior later?" asked Yang Xiaotian.

Yuan Wei shook his head, "Just like your mentor, he disappeared."

Yang Xiaotian's heart sank.

He disappeared too?

Afterward, Yang Xiaotian asked many questions regarding his mentor.