C44 Jindan

"Not necessarily." Zuo Zuo muttered, picked up the "dragon head" and looked at it carefully, confirming: "This must be the key to finding the 'Jindan', now look carefully, there are no dragon-shaped holes, I think, the library is just a decoration, what's used to confuse people, there must be a mechanism inside."

Yan Hua nodded his head and started looking around. Mo Yitong also helped him