C1339 The Weakness of the Notransforming Bone(last part)

"That's because there is no place in the human world that can forever maintain the power of the Xihe Lance. If the Xihe Lance were to be used in the human world for a few decades, it would rust and rot. However, the Extreme Hot Underworld in the Underworld has a thousand and four hundred degrees of magma." Taoist Zhong explained.

"It's the Underworld again