“You’re saying that the door is made out of Mystical Frost Iron?” Pei Qingfeng stammered as he blurted out his question to Bai Luochu.

Bai Luochu nodded her head in agreement and sighed as she looked at the door, “That’s right, the material takes tens of thousands of years to form deep underground and yet the person who created this damn door was crazy and wealthy enough to make it entirely out of Mystical Frost Iron!”

Pei Qingfeng thought that the...