In the following days, Mu Jinyu led Gu Xiyan and the others in quietly cultivating their skills within Yinlong Mountain.
Occasionally, Mu Hongchen would find the materials he needed for setting up formations, and he would cease cultivation to start setting up the array.
Half a month passed.
Mu Hongchen had gradually brought him quite a few materials, and to Mu Jinyu's delight, all of the essential materials needed for one particular formation that he currently needed had been provided by Mu Hongchen.
The Mountain Protection Array that Mu Jinyu was planning to set up was not comprised of a single formation. Rather, it was a combination of various arrays, arranged in conjunction with the terrain of the mountain. The key point was those nine peaks, the location of the Dragon Vein.