After hearing that, Zhang Han was stunned. "I don't know either. Forget it. Don't bother with it. I have something to tell you."

"What is it?" asked Headmaster Shan.

"It's about the Barrier-breaking Stone. I need one, at least a seventh-tier one. You know some people in the Astral Domain. Can you buy one?" Zhang Han went straight to the point.

"A Barrier-breaking Stone? That's very rare." Headmaster Shan stroked his beard.

Before ...