What the hell is it that Xiao Yu was a little afraid of the terrifying aura on the monster's body, but in the end, curiosity prevailed over reason.

Xiao Yu followed the trajectory of the Yousen monster and immediately chased after it, but the speed of the Yousen monster was extremely strange, although Xiao Yu was already fast, he still couldn't catch up, and soon, the green and gloomy monster disappeared into the dense forest.

After turning around the surrounding dense forest, he failed to find the figure of the monster, and just as Xiao Yu was about to give up with a lost face, a cold aura came from the dense forest in front of him again.

Xiao Yu didn't dare to slack off, and immediately dodged and chased after him, sure enough, the green and faint monster appeared again, and now Xiao Yu saw it clearly, this monster was flowing with green and faint true qi, and it was not like true qi, but it was like a flame, but the flame was green?

The humanoid monster composed of green flames pursed its mouth at Xiao Yu in an extremely humane manner, and then turned around and walked away quickly.

Could it be some kind of strange fire in heaven and earth? Xiao Yu's heart was so excited that he had come here from thousands of miles away, and he had been in danger many times, and he had encountered accidents, wasn't it just for the different fires of heaven and earth? Now, the strange fire of heaven and earth is in front of him, how can Xiao Yu not be excited.

Although, the green and faint fire man continued to send a terrifying cold aura to Xiao Yu, but Xiao Yu didn't want to retreat, the stronger the breath, the higher the level of the different fire, the higher the level of recovering the different fire, and the higher the achievement of the final alchemist.

In addition to their own mediocre qualifications, those low-level alchemists were unable to recover the high-level alien fires that were also an important reason.

After following the fire man for a ride, the fire man disappeared again, although he could clearly feel that the fire man was nearby, and he never ran far, but no matter how Xiao Yu used his eyes like a torch, he couldn't see where the fire man was hiding.

After a while, the green and faint fire man appeared out of thin air again, as if he was playing hide and seek with Xiao Yu, disappeared for a while, and then took the initiative to run out again, over and over again, walking and stopping, and before he knew it, Xiao Yu had been led to the depths of the mountains by the fire man.

In a low-lying canyon guarded by the mountains, the fire man disappeared again, and this time, Xiao Yu waited for two hours and did not see the fire man appear, it seemed that he had really disappeared.

Looking for the cold breath, Xiao Yu found a dark cave in the canyon, and the wind in the cave was sympathetic, blowing on his body, and it was cold to the bones. Even the soul couldn't help but shudder.

This kind of cold is different from the cold of the human world, even the top of the Holy Snow Mountain is not so cold, this kind of cold is more like the cold from the Nine Hells. There is no angry cold.

The cold aura is very similar to the breath on the fire man that Shi Cai saw, it seems that the fire man is really hiding in this cave, although the front is unknown and unpredictable, he doesn't know what will be hidden in the cave, Xiao Yu's sixth sense also reminds him that there is a huge crisis hidden ahead.

But if Xiao Yu wants to give up, he is very unwilling, he has been looking for so long, and finally encountered a strange fire, how can he give up easily. Even if there are thousands of difficulties ahead, you have to break through.

Having made up his mind, Xiao Yu's mana surged all over his body, and a pale golden energy ball of light instantly protected his whole body, and slowly walked towards the depths of the cave.

The cave winds downward, the further down the yin qi becomes, the stronger the wind, at first Xiao Yu's body protection method can still resist the invasion of the yin wind, but as the cave gets deeper and deeper, Xiao Yu's body protection method is blown thinner and thinner by the yin wind, and the light of the thinner and thinner body protection method is dim, and it seems that it will be blown out at any time.

But the cave is still bottomless, Xiao Yuchu estimated that starting from the valley, it has been about a thousand meters deep underground.

Finally, Xiao Yu's body protection method was blown out by the strong yin wind, and a bone-eroding cold rushed towards him, and the spiritual power in Xiao Yu's body was frantically lost, and the whole person was about to be stiffened. Qiang withstood the huge pressure, propped up an energy mask again, and continued to move forward against the wind.

Two thousand meters and three thousand meters, finally the spiritual power in Xiao Yu's body was exhausted, and as a last resort, Xiao Yu had to hide in the chaotic space first, and when the spiritual power was almost recovered, he walked slowly again.

Three thousand meters, four thousand meters, Xiao Yu could still support the body protection method for a while and a half before, but at this time, Xiao Yu's body protection method was blown out by a strong yin wind after just a few breaths. After a while, the spiritual power in Xiao Yu's body was depleted again. Helpless, Xiao Yu hid in the chaotic space again, and waited until his spiritual power returned to full value before setting off.

After repeating it more than a dozen times, Xiao Yu was no longer able to hold up the energy shield normally, and as soon as he lifted the body protection shield, it was instantly blown out by the yin wind that was like a substance, and the bone-devouring cold could not only invade Xiao Yu's body, but even freeze Xiao Yu's soul.

Several times, Xiao Yu was almost frozen by the yin wind, if it weren't for the help of the Eastern Emperor Bell, Xiao Yu would have confessed here even if he had ten lives.

It became more and more difficult to move forward, and in the end, it was almost impossible to move an inch. If you don't forcibly resist the fury of the yin wind with a huge amount of mana, you will soon be swept away by a huge force.

Even stabilizing his body was still powerless, let alone advancing, Xiao Yu had to stop moving forward, and quickly thought about countermeasures in his mind. We have all come to this point, and naturally we can't give up easily. But if you don't think of another way, it's almost hopeless to go to the end.

Digging a tunnel to avoid the yin wind above? Xiao Yu had a flash of inspiration, and thought of an excellent idea, digging tunnels rat spirit is good at it, but the rat spirit can't resist the invasion of yin wind, so Xiao Yu has to do it himself in the upper section of the hole.

After making up his mind, Xiao Yu casually summoned a top-grade flying sword, which was inserted into the ground with a "clank", sparks splashed everywhere, and there was not even a trace left on the ground, but Xiao Yu's top-grade flying sword fell into a gap.

What is the situation? Xiao Yu squatted down against the energy mask and gently touched the pitch-black ground, the ground was the same as the surrounding area, the whole body was pitch-black stones, the stones were hard and abnormal, three points harder than the high-grade magic weapon.

What kind of stone is this, and why has it never been seen? Not only was Xiao Yu not disappointed, but he was pleasantly surprised, with so many black stones, if he refined a set of battle armor and a weapon for each person in the chaotic space, wouldn't it be super awesome.

Of course, the most important thing at present is how to dig through the tunnels and try to avoid the strong yin wind. The top-grade magic weapon is not good, I don't know if the iron gun on the left hand is good, the iron gun is harder than the high-grade magic weapon, this Xiao Yu knows, but I don't know who is harder between the iron gun and the black stone.

As soon as his mind moved, the iron spear was instantly held in his hand, "Knock!" The iron spear slammed heavily on the ground, only to hear a crisp sound of "snort", and the iron spear instantly sank into the black stone.

The sharp iron spear really did not disappoint Xiao Yu, Xiao Yu's spear was like a dragon, and dozens of shots were stabbed out one after another, and the ground was quickly dug out of a half-human-high pit by the iron spear. Returning to the chaotic space to rest for a while, and recovering his spiritual power, Xiao Yu dug nearly ten meters deep in one go before he summoned the rat essence.

However, Xiao Yu overestimated the strength of the rat spirit a little, outside maybe the rat spirit can go through the mountains and make holes at any time, no matter what kind of complex terrain, the rat spirit can be at ease, but here, he is helpless. Not for anything else, but because his claws could not penetrate the black stone.

Helpless, Xiao Yu had to do it himself, digging about 200 meters forward, Xiao Yu dug up another vent to ensure that the excavated route did not deviate from the passage.

Two days later, Xiao Yu felt the yin wind in front of him suddenly become violent, and even in the tunnel, he felt the chill of eating bones. It seems that it is almost the wind.

After digging the tunnel for several days, it is estimated that it is no less than three thousand meters, and finally it is almost the end, Xiao Yu began to get excited again, maybe the strange fire is ahead. Xiao Yu sped up and dug out a vent upward.

"Weng!" Xiao Yu had just opened the passage above, and a violent yin wind poured into the tunnel, and Xiao Yu, who had not had time to react, was immediately frozen into a zombie. Xiao Yu's consciousness gradually blurred, and finally fell to the ground weakly.

The soul gradually detached from the body and slowly floated into the air, Xiao Yu finally saw the source of the yin wind clearly, and at the end of the cave was a cliff, under which a faint green flame continued to rise. The bone-eating cold comes from the soaring green flames. However, the yin wind blew out from the huge mouths of the two black-faced yaksha sculptures on the left and the right at the cliff.

Two giant Yaksha sculptures silently guard the cliff ahead. And in front of the cliff, there seemed to be a kind of magic pulling Xiao Yu's soul and floating over.

At this moment, the Eastern Emperor Bell in Xiao Yu's body suddenly burst out with a burst of golden light, and the jubilant and jumping dark green flames suddenly retracted in panic, and even the yin wind in Yasha's mouth temporarily stopped.

Xiao Yu's soul suspended in the air slowly floated back and merged into his body, and after a while, Xiao Yu woke up and turned around, looking around blankly.

Walking out of the tunnel, there are two huge yaksha sculptures, glaring at Xiao Yu viciously. The biting chill made Xiao Yu shiver for a while. Although there was no cloudy wind at this time, the cold here was ten times more than before. Even if Xiao Yu's body was full of true qi, it couldn't stop the biting chill.

It is difficult to gain a foothold in this place with his own body alone, Xiao Yu's heart moved, and the Donghuang Bell in his body instantly flew out of his body, and a blazing sun true qi spread around, and the cold chill immediately dispelled a lot, without the chill that eroded his soul, he became free, and Xiao Yu slowly walked towards the cliff in front of him.

The stone wall next to the cliff is engraved with several ancient characters, "Yang Shou is over, the underworld is dead!"

"Yang Shou is over, reborn in the underworld!" Xiao Yu muttered softly, what do you mean? Could it be that this is the entrance to the underworld?

In the early years, Xiao Yu had seen the Underworld Monument and the entrance to the Underworld on Immortal Island, and even broke through the door of life and death, but after a few years, he didn't expect to meet the entrance to the Underworld again in the Xiyuan Continent.

Walking slowly to the cliff, you can see an endless sea of green fire, but the blazing flames are not warm at all, on the contrary, it is colder than any other place.