chapter 972 Time clock

The spiritual energy contained in the medium-grade spirit stone is nearly a hundred times that of the low-grade spirit stone. However, even so, after being placed into the black disc, it only lasted for a few minutes before it was completely consumed. Unlike before, the white light released by the black disc after the medium-grade spirit stone was installed was slightly more intense. However, Han still couldn't understand the function of this white light. For the third time, he replaced the black...