Xu Mu unleashed his skill, his body wrapped in mana, he tunneled towards the ground at an extremely fast speed. It was just like being underwater, where the hard bedrock could not slow him down the slightest bit.
"Black Iron, Bronze Essence, Star Crystals! I never thought that there would be so much wealth hidden underground!"
After diving down hundreds of meters, Xu Mu released his Divine Intent which quickly discovered a multitude of Spirit Veins residing underground.
The island the Palace of Pure Heart resides on holds a medium-sized Spirit Vein and several smaller veins. These veins not only provide spiritual energy for cultivation to the disciples of the Palace of Pure Heart, they also nourish the island itself over time.
Not mentioning the various precious Spirit Stones hidden underground, even the stones that make up the ground itself already rival the hardness of common iron.
