Vol V Chapter 176

There were many rapids, big and small, found at the edge of the Ring of the World where the "Negative Plane,""Matter Plane" and "Spirit Plane" bordered on. These rapids were disorderly and unsystematic, but they also contained an extremely powerful force and were very dangerous. What was scarier was the fact that such poverty and backwardness in the living environment would give rise to the greedy, selfish and unruly civilians. These places often breed the most terrifying magic beasts, each of which possessed earth-shattering powers that even gods would hardly be on par with. So while these places occasionally produced some bizarre treasures, it was rare for anyone who did not fear death to come seeking out these treasures.