Gang Dalei had exhibited those thunderbolts, when they fought the Ghost Prison Envoy in a life and death battle. After that, he never used it again, and it was extremely mysterious. However, it was unexpected that it was actually a lightning-based magical treasure.
At that very moment, Gang Dalei's whole body was charred black, and his clothes were torn open. He had an expression, which showed that he was in dire straits, and he looked like he had been through many hardships. It seemed that the door of the secret room could not be opened so easily.
Gang Dalei charged in delightfully. At once, his eyes discovered the nine books atop the stone table and, without hesitation, he threw himself toward the nine books immediately.
However, when he had just touched the nine books, the nine books turned into dust at a speed that could be perceived by a naked eye. He had never seen even a single word of it.