If Yan could absorb the Pure Yang Qi contained within it, it would advance by a level and be able to inspire all kinds of wondrous uses from the Netherworld Map. At its peak, the Netherworld Map Dao Tool was an unparalleled treasure with infinite power, making it countless times more formidable than the King of Blood Night and the Sun, Moon, and Five Stars Bracelet.
Back in the day, Emperor Huangquan had crafted it to find the legendary Earth Emperor's Book, and when the two combined, they would transform into an Immortal Tool – truly extraordinary.