C69 Radix Diphtheriae Decapitaeniorhynchus(2)

Furthermore, the size of the dragon's mouth matched the size of the jade pendant. It seemed like Lily was right, the jade pendant was used to block the dragon's mouth.

After the jade pendant was put in, it changed its color again. It was neither red nor green, but had turned black, and just as it was about to turn completely black, the jade pendant suddenly cracked