Secret of the magus order

The servant's words unlocked the last of Ren Xiaosu's doubts like a key.

So it turned out the stone in Melgor's possession was the critical component to becoming a sorcerer.

With that stone, one would be qualified to become a sorcerer. Without it, you could study sorcery forever and still never become a true magus.

However, it so happened that Ren Xiaosu really did have such a stone.

He looked at Li Chengguo and asked, "What's that stone called?"

"It seems that you really don't know anything about the Kingdom of Sorcerers." Li Chengguo shook his head. "It has the same name as the magus order. It's called the Eye of True Sight. All the stones possessed by the magi are called Eyes of True Sight."

The Eye of True Sight's name implied a sorcerer could use it to seek the truth of the world and see powers normal people couldn't.