After glancing at the Formation Artifacts, Nangong Shuyun nodded lightly and began setting up the array in Xuanyuan Jingyi's study.
It was not until five o'clock in the morning that she finally stopped.
"Right below us is the core of the dragon vein. The spiritual qi emanating from it can flow directly into the array, which will make it even more effective. Combined with the Formation Artifacts Bai Feng previously refined for you, there won't be any issues."
Chapter 438