C142 Dragon Gall Sand

Everyone was dumbfounded.

"What is the secret in your book? It can make your personality change so much that you will give up so many things that are worth cherishing …" Ma Ji shook his head and sighed as he looked at Zhou Zheng.

Zhou Zheng's face once again revealed a sad expression as he said indifferently, "Teacher, if the secret is revealed, then it is no longer a secret