C3812 The Tang Army Attacked the City

Lu Yu said, "That's right. By coincidence, I have read about this formation in an ancient book."

Lu Yu didn't deny this fact.

The Taichi Dragon Devouring Formation was indeed something Lu Yu had learned from the Profound Heaven Scripture.

However, in the Heaven Realm, the ancient books were like a vast ocean, boundless and boundless. Even if someone were to investigate on purpose