Just as Lu Ye pressed that ball of fluorescent light into his forehead, the Hundred Formation Pagoda in the valley suddenly let out a resonant hum and shuddered. Invisible force swept in every direction, enveloping the entire valley.
The cultivators responsible for guarding the Hundred Formation Pagoda noticed it at once and swiftly reported it. Before long, a group of Heavenly Evolution Sect higher-ups, led by Sect Master Yu Xiao, hurried over to investigate.
Great Elder Bai Qian also returned.
News quickly leaked out. Many Heavenly Evolution Sect disciples learned that the Hundred Formation Pagoda had stirred and rushed over. Without Yu Xiao's command, however, they stopped outside the valley and watched from afar.
The Hundred Formation Pagoda had resonated!
Such a thing was uncommon, but not unheard of. It happened roughly once every few years, so the Heavenly Evolution Sect disciples were not unfamiliar with it.
Only one reason could cause this to happen.
Someone was challenging the Hundred Formation Pagoda and had achieved outstanding results! As for precisely how outstanding those results had to be, the Heavenly Evolution Sect had once made a conjecture: one had to be qualified to rank on the list. Unfortunately, the Hundred Formation Pagoda itself was incomplete, and that list could not be displayed, so no one dared be certain.
Yet judging from the fact that such resonance only occurred once every few years, very few people could accomplish it. Formation Cultivators of the Vast Sky Alliance throughout the Nine Provinces would basically all come to challenge the Hundred Formation Pagoda, and some had done so more than once. The annual total was no fewer than eight hundred, if not a thousand.
This showed just how difficult it was to make the Hundred Formation Pagoda resonate.
The resonance appeared because the challenger had