C138 The Legendary Acupuncture and Moxibustion of the Five Elements

"What's wrong? Could it be that even the third floor doesn't have the books that you need?" The old man asked with a smile when he saw Qin Long's dejected look.

"You're right, there really isn't any here." Qin Long smiled wryly, he had simply flipped through those books. Although there were quite a few records about the symptoms of difficulty to detect