"ROOOOAR..."
The echoes reverberated endlessly in everyone's minds. It wasn't until a long while later that the sonic wave finally dissipated, but the throbbing pain in their heads lingered. They all stared at the back mountain, their hearts pounding with apprehension. What in the world just happened?
"What was that?" Tian Ao looked down at the disciples, their spirits clearly dampened, before turning his gaze toward the now-barren back mountain. Even he had been slightly affected by that sonic wave just now. If he hadn't been so far away, it probably would have inflicted a minor injury. A sonic wave capable of injuring a Spirit Emperor Powerhouse... Just how terrifyingly powerful was its originator? They had to be at the Spirit Emperor Level, at the very least.
At that thought, Tian Ao's heart leaped into his throat. 'A Spirit Emperor Powerhouse... Is someone here to cause trouble today?'
