After the sound wave, Hu Tou's palm and Ling Zhenfei's palm also collided heavily.
Bang!
The sound wasn't loud, like muffled thunder, but it was immediately followed by Hu Tou's screams of agony.
With that palm strike, Ling Zhenfei had sent Hu Tou flying, and although Ling Zhenfei himself was injured and his strength somewhat diminished, Hu Tou was unprepared and his Zhiyi Boundary was no match for Mingmu Realm, the gap between them was too great.
Hu Tou was sent flying, and Ling Zhenfei, without needing to check, was certain that Hu Tou had been injured, at the very least he must have coughed up blood, with internal injuries that would take months to heal.
Ling Zhenfei had no intention of killing Hu Tou, so after striking him and sending him flying, he quickly headed into the passageway.