The four of them went all the way down in the direction indicated by the little boy, and after walking for half a day, a huge hole appeared in front of them, and the sound of monks fighting came from inside.

"Sister Lian'er, you stay here with these two little guys, let's go over and have a look!"

Yunxiao, Nangong Jian and Huo Man walked to the entrance of the huge underground cave, and looked down from this cave several zhang high, in a huge cave with a radius of more than 1,000 zhang, more than a dozen monks wearing silver Taoist robes were fighting around a black giant snake with a body length of more than ten zhang, the thickness of a bucket, and a red horn on its head.

"It's the monks of Kunlun Immortal Palace, Brother Nangong, do you know them?"

"I know, they are all disciples who went out to practice with me!"

Nangong Jian looked at the battle not far away, and was reluctant to make a move, although these former fellow disciples of his were in danger at this time.

"I don't want to see them, Brother Yun, you and Brother Huoman want to do whatever you want!"

Nangong Jian left the entrance of the cave and walked towards Lian'er, Yunxiao and Huoman glanced at each other, shook their heads, and then flew into the cave. At this time, the one-horned black snake spewed out a cloud of black gas from its mouth, and at the same time twisted its body to entangle several monks from the Kunlun Immortal Palace.

A monk from Kunlun Immortal Palace held an incense burner-like magic weapon in his hand, and a large amount of flames erupted from it, blocking the black gas emitted by the one-horned black snake, while the other two monks each held a large net in their hands, trying to trap the one-horned black snake.

The rest of the dozen or so monks joined forces to release a huge fireball, a wind blade several feet long, a wrist-thick thunderbolt to attack the one-horned black snake, and three monks were responsible for supporting the shield to protect everyone.

The one-horned black snake was constantly attacked, its ferocity was furious, its mouth was constantly spitting letters, its eyes were glowing with a strange light, and the scale armor on its body had been torn by the wind blade and thunder and lightning in many places, and a large amount of blood gushed out.

As the belly of the one-horned black snake bulged one after another, the monks of the Kunlun Immortal Palace did not notice that the one-horned black snake in front of them was launching a deadly attack.

At this time, the five monks joined forces again and sent out a thunderbolt that was not thick in the wrist and hit the head of the one-horned black snake, and suddenly the stimulated one-horned black snake opened its mouth, and a black wave of water erupted from its mouth.

The three Kunlun Immortal Palace monks closest to the one-horned black snake did not expect that the shield they held up could not resist this black wave of water at all, and the black water wave touched the red shield, dissolving the shield in an instant, and killing the three Kunlun Immortal Palace monks who had no time to escape.

Seeing that the situation was not good, the other Kunlun Immortal Palace monks hurriedly pulled back, but they didn't expect the black water wave to change in an instant, and in an instant, it was like raindrops shooting towards the Kunlun Immortal Palace monks who had retreated.

Except for the two monks who were the farthest away from the one-horned black snake, they were all unharmed, and the rest of the Kunlun Immortal Palace monks were all more or less hit by the black rain; wherever they were hit by the black rain, they all immediately festered, and many monks immediately rolled on the ground.

The monk who was in a slightly better situation hurriedly performed healing techniques, detoxification techniques, and recovery techniques for himself, but unfortunately the effect of these spells was limited, and then due to no one to command, the monks of Kunlun Immortal Palace fought separately, while healing their wounds, while retreating to find a hiding place, and even the two monks who were not injured turned around and fled from the hole on the other side.

A monk who was hit in the thigh by the black rain fell to the ground, and after seeing the one-horned black snake spewing out black water waves, he became a little sluggish, and the three monks closest to the one-horned black snake turned around and were about to flee, but they didn't expect the one-horned black snake to open its mouth, and a strong suction force sucked the three monks into their mouths and swallowed their stomachs.

Looking at the one-horned black snake approaching him, the monk slapped a bag on his waist and released a white leopard with black spots.

"Leave me alone, run!"

What made Yunxiao and Huo Man strange was that after this monk released his spirit beast, he did not let the other party entangle the one-horned black snake that was about to swim in front of him, but ordered his spirit beast to escape.

The white leopard did not listen to the master's command, and as soon as it appeared, it immediately turned into a white light and pounced on the one-horned black snake, biting the injured place under the neck of the one-horned black snake. The place where the white leopard bit was right on the blind spot of the one-horned black snake, which made the huge black snake shake its head in pain, trying to shake off the white leopard.

Seeing this, Huo Man admired this brave leopard very much, roared, and immediately turned into a three-foot tall flame bull-headed giant, the battle axe in his hand carried a ball of flame out of his hand, and the powerful power of the battle axe hit the head of the one-horned black snake fiercely, and immediately split the snake head of the one-horned black snake in half.

Before Huoman had time to rejoice, Yunxiao suddenly shouted: "Hurry back, this guy is not dead yet!"

Huo Man was stunned, the head of the one-horned black snake that had been split in half suddenly exploded, black and red blood splashed everywhere, and the white leopard was seriously injured by the explosion, flew out more than ten zhang and hit the stone wall of the cave, and then lay motionless on the ground.

After the head of the one-horned black snake exploded, black flames immediately ignited all over its body, and the scale armor on its body gradually faded away with the burning of the black flames.

"This guy has advanced! Brother Huoman, be careful!"

Fortunately, Yunxiao used a five-element shield to protect Huoman, otherwise Huoman would have been seriously injured by the explosion of the one-horned black snake at this time.

In the black flames, the headless one-horned black snake's body was constantly wriggling, and a new head was forming from the wound on its neck, and the single horn on the new snake's head completely turned black, and the original black scale armor of this guy's whole body turned red.

"This guy has advanced to become a demon emperor, we are in big trouble now!"

Yunxiao and Huoman sensed that the strength of the one-horned black snake had skyrocketed, and the secret path was not good, and at this time, Nangong Jian and Lian'er also came to the cave together.

"What about the two little ones?" asked Yunxiao.

Lian'er pointed to the outside of the cave and said, "They fell asleep outside!"

Yunxiao heard that the two little ones were asleep, and he couldn't take care of them, after all, if he couldn't kill the strange snake in the cave this time, no one would be able to live.

"This guy's advancement is a last resort, so its strength is a lot lower than the real Demon Emperor, but it is only twice as strong as the Demon King before it!"

Nangong Jian was very aware of the abnormal progress of this kind of monster, Huoman, Yunxiao only relaxed a little after learning about this situation, but the one-horned black snake with greatly increased strength had become the overlord of the underground world at this time, and became a rare crypt king snake.

The Crypt King Snake raised its tongue high and looked at the human monks on the ground with contempt, at this time, the monks of the Kunlun Immortal Palace basically escaped to death, and the monks of the Kunlun Immortal Palace who released the leopard just now also died.

"Second brother help me save that leopard, big brother Nangong, you block the strange snake first, I will come to support you later!"

Huo Man returned to his human form and came to the dying white leopard, sensing a powerful power in the leopard's body, and suddenly sounded a new ability that he had realized not long ago.

Yunxiao came to the white leopard's side, injected the power of the natural bloodline and holy spirit into the white leopard's body, and after a while, the white leopard's whole body began to glow, and after Huo Man saw it, he hurriedly took out a dagger and cut the skin on the palm of his left hand to depict an esoteric spell, after the spell was completed, he used his natural bloodline ability Fire Spirit to activate the charm, and then pressed the palm of his left hand on the white leopard's forehead.

The white leopard opened its eyes suddenly, and a golden flame began to burn all over its body, Yunxiao hurriedly left, and after a while, the flesh and fur of the white leopard were burned into ashes by the golden flames, and the bones turned from white to gray.

"Second brother, quickly inject life force into it!"

"I'll come!" Lian'er sensed Huoman's intentions, walked over, her two hands were in the shape of lotus flowers, and a green light shone on the leopard's bones, and soon under the effect of green light, the leopard's golden bones began to give birth to new flesh and blood.

"Hurry up, I can't stop it!" Nangong Jian shouted.

It turned out that the Crypt King Snake was close to completing its evolution as time passed, and its strength was getting stronger and stronger, and at this time it was already ten times its previous strength, and it was becoming more and more difficult for the Nangong Sword to hold back this much larger behemoth.

Yunxiao sensed the rebirth of the leopard, and at a critical time, he once again injected the power of the Holy Spirit into this life-threatening spirit beast, prompting this spirit beast to advance again at the critical moment of rebirth.

Oh!

The white leopard has advanced to become a holy beast at this time, and its appearance has changed greatly, although the appearance is still a leopard, but the body is covered with silver palm-sized armor, there is an extra vertical eye in the middle of the two eyes on the head, two fangs in the mouth stick out of the mouth, there is a pair of wings formed by scale armor on the back, and the tail is densely covered with fine silver scales, like a silver whip, and the four claws are thick and powerful.

"What is this?"

Yunxiao asked Huoman, Huoman looked at Yunxiao, and said proudly: "This is our Zhurong Clan's guardian beast Tianlin Beast, which is the descendant of the Fire Qilin and the Holy Qilin!"

The Celestial Beast waited for the Crypt King Snake in the distance, its mouth opened, and two fangs shot out, disappearing in an instant, and when it reappeared, it pierced two holes in the neck of the Crypt King Snake, and then flashed back into the mouth of the Celestial Beast.

The weakness of the Crypt King Snake is the neck, Nangong Jian saw that the opponent's neck was bleeding non-stop, and hurriedly launched the Sancai Sword, the three sword lights and the psychic Baiyun Sword instantly hit the wound, followed by a burst of explosions, the neck of the Crypt King Snake was blown to the point of flesh and blood.

The battered Crypt King Snake hissed, then slammed its head into the ground, burrowing into the ground and disappearing after a while.

"It's back underground to recover from its injuries, we can't let it just run away!"

Huo Man looked at the Tianlin Beast, two golden lights shot out of his eyes, and then the tattoos on his whole body also began to emit golden light, followed by the Tianlin Beast's body was also full of golden light.

What will happen to the Fire Man and the Celestial Beast, and will the four of them be able to reach the Crypt Clan's residence in time?