Moon Stone contained large amounts of Soul Energy, and it could sharply increase a person's speed of cultivation. They were priceless and in demand in the various main Dimensions. Unfortunately, over tens of thousands of years, both shores of the Moon River had been picked almost completely clean of Moon Stones. Many people searched for long periods of time without finding even a single Moon Stone.
"Aye, it's been three days in a row. And yet, not a piece of Moon Stone to be found!"
After coming up empty, a white-bearded man sighed hopelessly. This time around, the old man had risked wading into the Moon River. While he had no hopes of claiming one of the Divine Weapons of the Demon Palace, he would be satisfied with a dozen or so Moon Stones. Regretfully, he hadn't gained anything despite his efforts over the past few days.