It was a winding Spirit Vein located underneath Thousand River Valley, but it was scattered all around the place. Perhaps more accurately speaking, this Spirit Vein was incomplete and was in pieces. It was as if the words 'Thousand Rivers' were true for this Spirit Vein as well, in the depths of the ground, for it had split up into a thousand veins there.
Each vein was incredibly weak and barely noticeable, but the power of the world formed right at the end of these thousand veins was still able to make Hidden Dragon Sect take a fancy to this Thousand River Valley. Because of that, they chose this location to set up their branch.
This Spirit Vein that was a crystal vein, which gave birth to the stones called Shaman Crystals among Shamans, Berserker Stones among Berserkers, and spirit stones among Immortals, was the most important reason why Su Ming came to Thousand River Valley, besides looting all the sect's spirit medicine, of course.