C343
The fourth floor was a huge platform with at least a hundred pillars erected on it.
On each pillar were inscriptions and array formations.
Many of these were things that Xuan Yue had never seen before, but Xuan Yue knew some of the methods. These array formations were undoubtedly the array formations of the post-Xuan Yue era, but Xuan Yue's Heavenly Array Master was still here