After reading the content of the letter, Mo Jiuli roughly understood what this place was! This stone chamber was specially designed for enhancing fire attribute dark energy. Fire attribute cultivators can cultivate here at ten times their usual speed!
The stone chamber could only accommodate two people at a time for cultivation, and after entering, the cultivator's level must be raised by three levels before they can leave!
As the master of the space, the stone chamber could only be accessed by others with Mo Jiuli's permission. After opening the stone chamber, Mo Jiuli would receive some rewards in the form of a brocade box containing the letter, which held a top-level refining material called moon iron!
Additionally, the stone table that held the brocade box was also a top-level refining material called moonstone! Mo Jiuli was quite satisfied with these two rewards...