Feng Xi led dozens, even hundreds, of Rune Cultivators in upgrading Soul Severing Cliff's protective formation. Fairy Sword Ji and the others focused on training to increase their strength, while Ye Luo, Fairy Meng Shang, Zi Yun, and the other cultivators with a deep understanding of formation restrictions and rune arts worked hard to master rune arts that would boost their power. The greater their mastery of these arts, the more they could enhance everyone's strength when they used them later. This was far more effective than the gains they had made from comprehending the Heaven and Earth Great Dao during this time.
Ling Tian and the others had a solid grasp of rune arts, as well as a foundation in formation restrictions. Most importantly, as Feng Xi upgraded the protective formation, she also offered them pointers. This made their progress in understanding rune arts twice as fast, and they grew increasingly adept at using them to boost everyone's strength.
Time drifted by. In the blink of an eye, several decades passed.
After all these years, Feng Xi and the others finally completed the overhaul of Soul Severing Cliff's protective formation. The upgraded formation was far more powerful than the rune formations in the western part of the God Realm. After all, Soul Severing Cliff's original protective formation had already been of a high grade—it had been personally set up by Elder Heaven-Devouring Wolf. Now that rune arts had been incorporated into it, its power had increased greatly. It was no surprise that it surpassed the rune formations created by Rune Cultivators.
Over the years, Fairy Sword Ji and the others had not seen any of Chi Xue's spies make a move. Ling Tian wasn't bothered, but Fairy Sword Ji, Tan Tai Chang Feng, and the others were somewhat dissatisfied.