Ever since the page of the Netherworld Book fell into Pei Xuanjing's hands, apart from gaining a considerable amount of Taoyun energy after refining it, it served no other purpose.
Pei Xuanjing had tried various methods, such as refining it with True Qi, baking it with fire, soaking it in water, and dripping blood onto it. However, the Netherworld Book's page remained unchanged without any response.
If it were not confirmed that the page of the Netherworld Book was a genuine treasure, Pei Xuanjing nearly had the thought of discarding it.
However, during one life simulation, he accidentally triggered the refinement of the Netherworld Book's page. Still, he ended up dead due to the Netherworld Book's backlash afterwards.
Pei Xuanjing was not only curious about the Netherworld Book's page, but he was also filled with strong apprehension.
Despite his apprehension, since there were signs of change in the Netherworld Book, Pei Xuanjing naturally couldn't ignore it.