Inside a small mountain several hundred zhang high at the northwestern corner of the Falling Moon Alliance Grotto-heaven Secret Realm ruins.
A Rank 3 mid-grade pangolin demon, several zhang in size and covered from head to toe in black scales, slept soundly, exuding a terrifyingly ferocious aura. Its entire body was curled into a ball.
Protected by its dense scales, a demonic beast like this was exceptionally difficult to deal with.
Many remnants of ancient formations and restrictions lay scattered across the mountain. Faintly, one could sense terrifying killing intent lurking amid the dense forest.
It was precisely because of these remnants of ancient formations and restrictions that the Heavenly Thunder Rat Demon Pack had found it difficult to search through the Grotto-heaven Secret Realm ruins.
Finding a suitable demonic beast truly was not easy.
Su Yu followed the Heavenly Thunder Rat Demon Pack to the foot of the mountain. He had initially intended to find a gap in the formations and restrictions to enter the mountain, but after searching for a while, the killing intent pervading the mountain made him stop in his tracks.
Ancient trees towered into the clouds in the forest, while mist shrouded everything upon the mountain.
Separated by the remnant formations and restrictions left behind from ancient times, Su Yu sensed the aura of the Rank 3 mid-grade demonic beast slumbering within the mountain.
It was very strong.
It was likely comparable to Core Formation Stage Five, perhaps even Core Formation Stage Six.
After pondering for a moment, Su Yu suddenly stomped the ground. "Boom!"
The power of his Body Refining Technique, already nearing the Twenty-Third Layer, gathered within that stomp. In an instant, the earth for one or two li around Su Yu shook violently. A ring of force rippled outward in all directions,