When you enter the cave, you are greeted by a dimly lit passage.

The passage is surprisingly spacious, and the surrounding stone walls are dotted with starlight, and if you look closely, you can see that they are fluorescent ores that have emerged from the walls.

Although the light is very faint, it accumulates a lot, and the passage is not a black eye.

The four of Du Mu leaned against the stone wall on one side and walked forward cautiously.

The passage was littered with bones and feces from the Black Rock Leopard, which could be accidentally stepped on from time to time due to the light, and a disgusting stench filled the air.

Faced with this scene, the two girls had already turned pale, but they gritted their teeth and persisted without the slightest complaint.

Fortunately, the passage was not very long, and after seven or eight minutes, the four of them finally left the passage and entered a stone chamber.

The air in the stone chamber was also very dull, but it was much better than in the passage, and as soon as they entered, the two girls couldn't wait to breathe heavily.

Du Mu and Luo Shen took the opportunity to look around.

The first thing that caught their eye was a wall deep inside the stone chamber.

A huge circle is engraved on the wall, with countless concave lines crisscrossing and crisscrossing each other, faintly giving people a sense of mystery and mystery.

However, this is not the reason that attracts the attention of the two, but at the nodes where the lines intersect, there are shimmering and hazy crystals.

Pyroxene!

Du Mu roughly counted and found that there were at least a hundred pyroxene inlaid on the wall, in addition to the three kinds of pyroxene of strength, agility and physique, there were also a lot of perception pyroxenes, and he even saw a few will pyroxene stones that emitted a blue purple shimmer among them.

The various colors of light are intertwined to form a beautiful and dazzling light map.

"So many pyroxenes!"

Chi Xiangzhen and Zhou Qixi had recovered, and when the two came over to take a look, they were also shocked by the numerous pyroxene on the wall.

Immediately followed by ecstasy.

"It's developed!" Chi Xiangzhen's eyes lit up, and the corners of her mouth were almost saliva, but after a while, she reacted again, her face changed, "Wait, doesn't that mean that those Black Rock Leopards are devouring the pyroxene on this wall, not the crystallization point?"

Although hundreds of pyroxene are also a big gain, they are dwarfed by the crystallization point.

"Not really. ”

Du Mu's eyes slowly scanned, pointing to the lines above, "Look at the intersection points of these lines, each place is well inlaid with pyroxene, and there is no empty space, so the pyroxene devoured by the black rock leopards does not come from this wall, but from another place." ”

"That's good. Chi Xiangzhen breathed a sigh of relief.

"So, the next step is to find the crystallization spot. Du Mu withdrew his gaze from the circle formation and turned to look at the other side.

In the middle of the deepest part of the stone chamber, a two-meter-high door comes into view.

Although the stone chamber was large, it was empty, but the wall engraved with the circle and the gate were the most eye-catching, and it was difficult not to notice it.

In the depths of the gate, there was a faint low roar, Du Mu and Luo Shen glanced at each other and immediately understood.

The Black Rock Panther herd was on the other side of the gate, and as for the crystallization point they were looking for, it was likely to be there.

"Let's take the pyroxene off the wall first. Chi Xiangzhen proposed.

"Don't worry, let's go inside and have a look. Du Mu stopped her, "This circle formation doesn't look simple, it's likely that it's a certain mechanism, so don't move it for the time being." ”

"Anyway, pyroxene won't run here, and it's not too late to get it when it comes out of the door. ”

As soon as Chi Xiangzhen thought about it, he no longer insisted.

So the four of them cautiously approached the gate.

As he approached, the beast's roar grew louder and louder, and the anger and pain contained in the roar could be clearly heard.

The four of them looked at each other, and their hearts became more and more confused, but they did not stop and walked straight into the gate.

Behind the gate is a narrow platform that can accommodate just four or five people standing.

What comes into view is a very spacious underground cavern.

Like the outer passages, the cave dome and its surroundings are inlaid with countless fluorescent ores, which act as a light source to illuminate the cave.

Underneath the ore, dozens of black rock leopards were trembling on the ground, trembling and not raising their heads, looking very frightened.

And the source of their fear is more than ten meters in front of them, a giant beast that stands upright, its body is as huge as a tank, and its body seems to be made of red, blue, and yellow rock blocks, colorful and extremely strange in appearance.

The beast's head was raised in the air, roaring at the dome, and after a moment it swooped forward and swooped out.

With its movements, countless strips of dazzling white light suddenly appeared in the void in front of it, and they were slammed into the giant beast like a whip, whipping the giant beast into a roar of pain, and its body staggered, falling to the ground in embarrassment, unable to get up for a long time.

Only then did Du Mu and the four of them notice that the ground under the giant beast was also engraved with a circle array, the shape and texture were exactly the same as the stone chamber outside, and the position of the inlaid pyroxene was also the same.

It's just that the surface of the circle array is covered with a layer of light film as protection, and the giant beast waives its sharp claws as if venting its anger and grabs it a few times, causing ripples on the light film, but it has never been able to cause any damage to the circle array below.

Seeing this, Du Mu and the others suddenly realized that the circle array was used to imprison this strange-looking giant beast.

"What kind of monster is this?" Chi Xiang Zhen stared intently at the giant beast in the circle, she had never seen this kind of beast in any pictures or videos.

Luo Shen exclaimed: "I haven't seen it either, it should be a desolate beast species unique to this ruin." ”

While the two were talking, Du Mu activated the combat power detector on the giant beast.

'Combat Strength: 561'

"Three-star level desolate beast?" he muttered secretly, "No, it should be more than that, this desolate beast has been trapped in the circle for an unknown amount of time, and has suffered many attacks, I'm afraid it is far from its heyday, and its true strength should be more than that." ”

Then, Du Mu moved his gaze to the group of black rock leopards lying on the ground, roughly counting, the number is roughly more than thirty, most of them are ordinary black rock leopards, and there are seven or eight mutant black rock leopards.

At the front of the herd is a mutated Black Rock Leopard whose body surface has a number of red stripes far beyond other races, almost connected together, and the value it shows on the combat power detector is 478, which is converted into a two-star peak of martial arts strength, nearly three stars.

"Looks like this guy is the leader of the Black Rock Panthers. Du Mu said secretly.

Judging from the scene in front of him, it is very likely that the giant beast subdued a black rock leopard that came here by accident, and let it devour pyroxene to mutate and evolve, and then ordered this mutated black rock leopard to bring more of its kind, deter and subdue it, and finally gradually evolved into the current herd.

"So everything is clear, but the question is, what about the pyroxene for the Black Rock Leopard to devour?"

Du Mu was thinking about it, and suddenly heard a whisper of surprise from Zhou Qixi beside him.

"I found it!"

He turned his head and saw him kneeling on the edge of the stone platform with his back to him, leaning too forward, and most of his thighs under the skirt of his uniform were exposed, and the snow was dazzlingly white.

"Ahem!"

Du Mu coughed heavily.

Hearing the voice, Zhou Qixi got up and turned around, and saw Du Mu's strange appearance of wandering eyes, as if he remembered something, he suddenly covered the uniform skirt behind him, and his pretty face turned red for a while.

Seeing this, Du Mu hurriedly changed the topic: "What did you find?"

Zhou Qixi remembered this and hurriedly said: "Crystallization point! I found the crystallization point!"

As soon as these words came out, Luo Shen and Chi Xiangzhen, who were observing the giant beast, were immediately attracted and said in surprise: "Where is it?"

"Underneath the platform. ”

Everyone took a closer look, only to find that on the stone wall under the platform, there were clusters of pale silver crystal clusters, and inside the crystal, there were five kinds of pyroxene, which were dotted with red, blue, yellow, blue, and purple dots.

The crystal bush spread down from the two-meter-high stone wall, extending along the ground, covering more than ten square meters, and the dense five-colored light points dazzled them, and their breathing involuntarily increased.

For a while, all four of them fell into a situation where they didn't know what to say, as if they had lost their ability to speak.

It took a full minute for them to take a deep breath and make eye contact, and they instantly reached a consensus.

Dig!

However, before that, there is still a difficulty in front of them.

Black Rock Panther Pack!

Although the giant beast was more powerful, it was imprisoned by the circle and could not get out at all, so it was not a threat, so they only needed to deal with the Black Rock Panther herd, and they could dig that crystallization point to their heart's content.

In an instant, Du Mu made a decision: "Sneak attack! Kill those mutated black rock leopards first!"

Due to the dim brightness of the platform, and the fact that the giant beast was busy fighting with the circle array, he would not be aware of Du Mu's existence for a while.

As for the Black Rock Leopard herd, not to mention, they are all lying on the ground and dare not raise their heads, and it is even more impossible to find the intruder.

There is no doubt that now is the perfect time for a sneak attack.

The four of them estimated that as long as the leader of the mutated black rock leopard and the remaining seven mutant black rock leopards were killed first, it would not be difficult to solve the remaining twenty or so black rock leopards.

After all, they have Du Mu's three-star combat power on their side!

In the darkness, the four grabbed the edge of the platform and jumped cautiously.

Fortunately, the platform was only more than two meters high from the ground, and with the skills of four people, it was enough to land quietly without attracting the attention of the Black Rock Leopard herd and the giant beasts.

Then, on their toes, they ran quickly and silently towards the herd, until they were within thirty meters of the herd, and the giant beast lying on the ground did not move its ears, as if it heard something, and looked up.

At this glance, human anger suddenly appeared on its face, and the beast's mouth was wide open, and it was about to roar angrily.

And at this moment, Du Mu had already let out a low snort.

"Do it!"

The words fell, accompanied by a slight explosion, and his whole person disappeared in place in an instant, and when he reappeared, he was already above the head of the mutant black rock leopard leader, and the long sword in his hand tore through the air, stabbing at its head like lightning.