The sound had come from a massive solid rock—the very rock Qin Fengming had just dripped several drops of spiritual liquid onto to imprison the towering Mountain Demon.
Without the slightest delay, Qin Fengming stirred the magic power within him and retreated a hundred zhang.
If the enormous rock imprisoning the Mountain Demon shattered, that terrifying creature would naturally emerge. He had no desire to fight the Mountain Demon in close combat.
The Mountain Demon itself had gained spiritual form from mountains and rivers. It could swallow stone and devour metal, and its body was incredibly tough. Although Qin Fengming's cultivation was now far beyond what it had been back then, he still could not withstand being ambushed by the Mountain Demon.
The sudden sound from the mountain rock also jolted the Luoluo Beast, which had been wearing an expression of enjoyment.
It raised its head to look at the towering rock beside it, shock flashing in its eyes. Relying on instinct, it moved with a speed not much slower than Qin Fengming's, its body blurring as it also retreated.
Although the Luoluo Beast had not taken human form, its intelligence was still far beyond that of low-level demonic beasts.
It naturally sensed some dangerous aura. Thus, it withdrew at top speed without the slightest hesitation.
After steadying his mind, Qin Fengming looked toward the enormous rock, blue light flashing in his eyes.
The rock before him showed no abnormality at all. Seeing this, Qin Fengming's face revealed confusion. After the crisp sound rang out, not the slightest noise came again.
If Qin Fengming had not been certain of what he had heard, he would have thought that it had merely been an auditory hallucination.
With suspicion in his eyes, Qin Fengming watched the enormous rock. Magic power surged within