The Power Crystal of the white werewolf?
Bai Chen didn't understand what Ma Qiao was talking about, but he knew that the old servant was still talking about the sword that was given to him by Wu Jinhai when the two of them had just met in the Forbidden Forest.
He still hid the sword behind his back, but he also remembered that there was indeed a white crystal on the hilt of the sword, and he instantly thought of it after hearing Ma Qiao's words about the Power Crystal.
However, he didn't know anything about the crystal, nor did he expect that the crystal on his sword was special, so he didn't immediately believe what his servant had just said.
But then he recalled the memory of when Wu Jinhai purposely forced him to hide his sword when Emperor Bai Guowei noticed it, and he assumed that there was indeed something special with the sword.