Wearing the underwater breathing insect, Tang Zhen began to search for this kind of glittering crystal under the water.
After searching for half a day, Tang Zhen found a total of seven such crystals at the edge of the deep pit.
This crystal was as bright as a diamond. It didn't need any light source and could flash with a fiery light from time to time.
Tang Zhen knew that there was definitely more than this kind of crystal stone, but he did not go deep into the huge pit to search.
There was no need to waste a lot of time on something he didn't know the use of.
After keeping the crystal in his storage space, Tang Zhen boarded the military helicopter and headed straight for Holy Dragon City.
After returning to the Holy Dragon City, Tang Zhen discovered that the Riverside was still bustling.
