Without waiting for the billowing smoke and dust to dissipate, Hao Yu stretched his figure, and the rubble that fell to the ground under his feet quickly passed through the smoke and dust area, appearing more than 100 meters away, if he didn't feel the increasing impact of the sound waves, he couldn't have run farther.

Whew!

As soon as Hao Yu landed here, he saw two black shadows flying towards him out of the corner of his eye.

"It's you obnoxious stuff again, let's explode!"

Shot like lightning, Hao Yu's bombardment of the fist print, regardless of the distance, appeared in front of the two black shadows must pass through the road, slammed into it, only to hear two rumbling sounds, these two groups of attacking monster remnants, when they were still two or three feet away from Hao Yu, were knocked out, smashed down on the stone walls on both sides of the tunnel, and hit many stone fragments, and Hao Yu ignored these flying bullet-like fragments, jumped over, and was more than ten meters away.

In the next few hundred meters, Hao Yu encountered nearly twenty waves of monster remnant souls, in short, the closer he got to the huge cave, the more frequent the monster remnant souls appeared, and the combat power of these monster remnant souls became more and more powerful, and even a single king-level late-stage combat power remnant soul appeared.

"Huh~ Is there still an end?Could it be that there is a demon cave in front of this?That's why there are so many monster remnant souls hidden?By the way, I forgot, I have a soul refining tripod specifically for remnant souls, if I use it, my path forward should be smoother, right?"

Although in this strange secret realm, Hao Yu had no way to contact the souls of the two super powerful ancient weapons, the Soul Refining Ding and the Crystal Soul Tower, he was still able to use the imprints of the two artifacts on his arm, and the two ancient weapons only needed to consume some more internal breath.

Puff~

With one palm, the remnant soul of a monster with the late combat power of the king level was shattered in mid-air, and when Hao Yu fell to the ground, his face turned pale, just now, although he successfully solved the earth, the consumption was not small. Don't look at these monster remnant souls have no spiritual intelligence, and they can't compare to the combat power of real martial artists of the same kind, but after all, they are facing strong enemies at the middle and late stages of the king level one after another, although Hao Yu is an emperor-level master, his internal breath is also quite consumed.

"Whew~ That's the end, right? No, stop and rest for a while. ”

It was the large metal warehouse like a tank again, took it out and put it on the ground, Hao Yu walked in again, and after closing the warehouse door, Hao Yu ran the exercises, first to heal the wounds, and then to regulate the breath and restore the internal breath. It took about an hour for Hao Yu to get himself back to his best before he walked out of the metal warehouse.

Scold~

As soon as he stepped out of the warehouse door, Hao Yu's energy barrier that was swaying outside his body was almost dispersed by the sound waves that came from the impact, and while waving his hand to put away the metal warehouse, Hao Yu had to take a small step back to remove the impact of the sound wave impact on him.

Although it was very difficult, less than 100 meters away, he was still stepped on by Hao Yu, although he walked for more than ten minutes at this distance.

Whew......

Panting, Hao Yu sat at the end of the tunnel, at the entrance of the cave, and rested for a while.

"Is that your weird mess up a mess? watch me break up your tortoise shell and see who you really are. ”

After resting enough, Hao Yu came to the cave, and at first glance, he saw the thing floating in a large area of gray and black qi, no way! That thing was really eye-catching, although the cave seemed very dim, but this object, although it was surrounded by layers of gray and black qi, still showed a red light, although it was faint, but it was also conspicuous. In addition, there are drum waves that constantly vibrate from it, which are so clear that it is difficult not to pay attention to them.

Punching with both hands at the same time, at the red black object floating in mid-air, it was a blow, and the imaginary roar did not appear, and the two fist marks made by Hao Yu just touched the gray and black demonic qi that almost filled the entire cave, and they collapsed, only making a slight sound.

"The demonic aura here...... It's a little different, it's thicker than all the demonic qi I've encountered before. ”

With this encounter alone, Hao Yu sensed that the gray and black demonic qi permeating this cave was much thicker than the demonic qi he had seen before.

Looking up at the sky above the cave, he stood on the edge of the platform at the entrance of the cave, looked down, and wanted to see the bottom of the cave, what Hao Yu saw was the same scene, as black as ink, whether it was the top of the cave or the bottom of the cave, there was no end in sight, it was just pitch black, as if it was going to devour people's eyes.

"It's really strange, where do these demonic qi come from?"

wanted to probe out of the soul consciousness and find the source of the demonic qi here, but when he thought of the result of his previous backlash because of this, Hao Yu did not do that, but chose to pull a wisp of demonic qi, sealed it in his palm, and after carefully inspecting it for a long time, he ran the Nine Extremes Exercise and tried to absorb the demonic qi in his palm into his body.

At this moment, an unfamiliar voice sounded in Hao Yu's mind: "Don't be so reckless!"

But obviously, this voice came a little late, Hao Yu had already incorporated the demonic qi in his palm into his internal organs, although it was only a small wisp, but it brought him a strong vibration, he instantly felt that there was an inexplicable emotion in his heart that was agitated, and the feeling of irritability became more and more intense, Hao Yu immediately reacted, this is the special nature of demonic qi, which triggered his negative emotions.

"It's just such a small wisp of demonic energy, you can't help me......"

With a soft drink, Hao Yu practiced the method of forging souls, and quickly suppressed the throbbing in his heart, and the flush on his face just now quickly disappeared.

"Hmm, the method of forging souls, you can still see this kind of method, is Guwu prosperous again?" The mysterious voice sounded in Hao Yu's mind again.

Hao Yu, who suppressed the strong negative emotional fluctuations in his heart, only then remembered to respond to the mysterious voice that sounded in his head, he scanned the entire cave and asked loudly: "I don't know which senior master, your reminder, thank you for being here, ...... before?" You also called me here, boy, right?"

He looked around the cave again, but still didn't see any human figure.

"No need to look for it, I'm in that black air, yes! The mysterious voice clearly informed Hao Yu of its location.

Looking up at the thing in mid-air that emitted a little red light, a trace of surprise flashed in Hao Yu's eyes: "Could it be that the predecessor was sealed in that by a monster?"

"Seal? I...... Who am I? Why am I here? By the way, it's just my ...... that is sealed here. Heart!"

I don't know why, the thing wrapped in demonic qi in mid-air, its fluctuation frequency suddenly became violent, and the sound waves that oscillated out were only a little bit close, and they could disperse the nearly ten layers of energy barriers that Hao Yu had arranged outside his body, and the sound waves did not disperse the protective barrier that Hao Yu had added to himself, but after he listened to the words that the mysterious voice came to his mind, all the energy barriers outside Hao Yu's body collapsed in an instant.