Yu Xing raised his eyebrows, in this gray mist, there were indeed monsters. A huge snake tail as thick as a water tank suddenly flung out of the fog and struck a wind dragon.

The hurricane vanished in a flash. The snake tail slapped twice unceremoniously, and two more wind dragons were easily defeated.

The corners of Yu Xing's mouth curled. Bursting winds raged in the sea of fog, blowing in all directions, blowing most of the gray fog to pieces.

The entire sea of fog finally collapsed, and the figure of the monster was also vaguely revealed. Huge, like a small mountain like a black body, this python is as black as iron, more than fifty or sixty zhang long, the body is extremely thick, covered with palm-sized black scales.

A pair of green snake eyes are shining a cold light. Yu Xing frowned, only feeling that this demon beast was a little familiar, as if he had seen it in some Elder Scroll.

But I couldn't remember it for a while. The giant python stared at Yu Xing, and began to show a fierce light, and whoever was disturbed in the cultivation place would not have a good temper.

"Childe be careful." Mu Peiling on the side exclaimed. Immediately afterwards, the giant python raised its head and exhaled vigorously.

Suddenly, there was a disgusting smell of fish, and he stood in front of Yu Xing. Yu Xing frowned, and subconsciously exerted his body-protecting true qi, and a faint golden light spread on the surface of his body.

The python's blood basin opened wildly, and the snake's belly was flattened, and it sucked suddenly. In an instant, the gravel and dirt in front of the giant python bounced up from the ground one after another, and rushed into the giant python's mouth.

But Yu Xing was not on guard, he felt as if he was being pushed with a huge force behind him, and as soon as his footsteps were loosened, Yu Xing's body was instantly unable to move, and he floated out of thin air and was about to be ingested by the giant python.

"Okay, it turned out to be the three black snakes, the demon beasts in the middle of the Yuan Infant, and I am of great use." When Yu Xing saw this kind of supernatural power, he finally remembered it.

Not surprised. He snorted coldly, he was known as the strongest person under the three major cultivators of Tiannan, and it was not for nothing.

With a burst of golden light, Yu Xing's figure fell to the ground again. The three black snakes were stunned for a moment, obviously not expecting that Yu Xing could be separated from his supernatural powers.

But the next moment, Yu Xing stretched out his hand, and seventy flying swords suddenly swept out, one turned into three, three gave birth to nine, and in an instant, countless flying swords, flashing golden thunder, turned into a thunderstorm in the sky, and suppressed towards the three black snakes.

When the python saw the thunderstorm, it seemed to feel threatened. The main head roared, and with a flash of inspiration, the cyan glow enveloped the entire body, and then the blood basin opened its mouth and suddenly pounced forward.

With a bang, a thunderstorm fell. The giant python relied on the scale armor all over its body, and it really survived in the thunderstorm.

But Yu Xing didn't let him breathe, and immediately raised his big hand, and a huge dragon claw fell through the air, smashing into the body of the three black snakes, suppressing them below.

The three python heads only had time to scream before they were overshadowed by a loud rumbling sound. Under the dragon's claws, the three giant pythons were not killed immediately, but there was still a python head exposed outside the gap between the dragon's claws, screaming desperately and swinging its head back and forth, its eyes full of madness.

"Huh." Yu Xing sneered, just glanced at it casually, and then violently crushed his internal organs.

At the same time, a crystal green demon pill also appeared in front of Yu Xing. Yu Xing directly put it away, and the other three black snakes, as one of the ancient fierce beasts, although they are still minors, but the materials on their bodies are also rare refining treasures, and Yu Xing is naturally not polite, and they are all included in the storage bag.

"It's a pity, if it were an adult three-headed black snake, it should be of greater use to me." Yu Xing muttered, he had just entered the middle stage of the Yuan Infant and was able to defeat the late Yuan Infant stage, and now he was already at the peak of the middle stage, and Yu Xing's self-confidence was naturally greater.

But that's what he said, the adult three-headed black snake is comparable to the fierce beast at the peak of the late Yuan Infant period, and can perform three great magical powers, and it is not easy for him to deal with it.

"Childe Kamui." Mu Peiling walked to Yu Xing's side with a happy face. However, Yu Xing's face was not good, just the entrance of the passage was such a fierce beast, and the danger inside was naturally greater.

He hesitated for a moment, then instructed Mu Peiling to wait for him here. He brought Mu Peiling over, in fact, he also wanted to see if there was anything to help her get married in the Fallen Demon Valley.

At the same time, Yu Xing also deliberately took out a few puppets prepared before and handed them to Mu Peiling. This is what he asked for an elder of the Heavenly Dao Alliance who is proficient in the way of puppets, a total of eight puppets are all cultivators in the late stage of the Jiedan, and the formation is comparable to the Yuan Infant, which is enough to protect her.

With this in mind, Yu Xing was ready to go deeper inside. Rose to a low altitude of five or six zhang high, slowly flew forward, until more than 20 miles, only the scenery in front of him changed, and a pale yellow tall stone wall appeared.

The stone wall reveals a black cave, which is seven or eight zhang wide.

"This should be it. Passing through this cave is supposed to be the inner valley. Yu Xing muttered, according to the message of the Venerable Master Cangkun, this entire valley is full of Gangyin sand veins.

It can be regarded as the refining material second only to Kangjin, but it took him so much effort to find such a point and integrate it into the flying sword.

There is a whole vein here, which is really envious. But Yu Xing is just to see, he doesn't have time to be a miner.

Stepping into the cave, this cave is a little dark, but as long as you inject a little spiritual power into your eyes, you can see clearly, and there is no problem in seeing.

The size of the cave is always the same at the entrance of the cave. The two-color stone wall is still the same pale yellow color.

After walking for about a quarter of an hour, there was a sudden change in front of me. I saw that the front suddenly opened up, and the passage suddenly became a little wider.

In this wide passage, stalactite-like strange stones are scattered from top to bottom, and a silky silver-white light is emitted, illuminating the entire passage with extreme light.

These silver filaments are strange and abnormal, although they are obviously intangible, but each filament of light is clear and abnormal, as if it were tangible.

"This is the Northern Origin Light mentioned by the Venerable Master Cangkun." Yu Xing muttered, slapped one hand into the storage bag, and a fist-sized blue bead appeared in his hand.

This is a high-level protection magic weapon obtained in the early years. Even among the Yuanying monks, it can be regarded as a treasure.

Yu Xing held this bead in his hand and slightly injected some spiritual power into the bead. Suddenly, a blue curtain of light appeared on the surface of the beads.

Yu Xing flicked his backhand, and the ball turned into a ball of blue light and shot out. This time, as soon as the blue light bead entered the Northern Yuan Light, the silver filaments trembled as if they had seen a delicious prey, and immediately swarmed up to surround them.