I have an idea

Roan, of course, understood what the other problems would be. 'If there are higher rank Divine Stones, perhaps there are aquatic demon beasts involved in it. There has to be some Rank Four or maybe even Rank Five Divine Stone Mines for this white powder to be created from their dust. Let's forget the fact as to whether we can resolve the other problems. We might be poking a hornet's nest if we go after the source.'

It was then that Kentucky noticed something. 'Wait! What if this white powder that can transform others into salt statues is some defense mechanism? A mine with Rank Four Divine Stone or higher would be considered a continent's treasure. The Sacred Undersea Kingdom would see it as one of the most important things in the entire Pol Continent. Maybe this white powder was created to conceal this mine.'