Fang Zhuo was stunned for a moment, not understanding what the two demon rats were attacking the cave wall for.

The claws of the demon rat were more than a foot and a half long, sharp and hard. Fang Zhuo saw that the solid rock cave wall was shattered like tofu under the sharp claws of the two demon rats.

The front paws of the two demon rats were like windmills, and in Fang Zhuo's opinion, it was impossible to distinguish their movements at all.

Almost at the touch of a button, a large hole was dug into the wall of the cave. Then I saw the rubble flying, and the two huge demon rats dug the hole very quickly, and quickly disappeared into the rock formation.

Fang Zhuo's Divine Sense hurriedly followed, and at this time, he suddenly caught a trace of the fluctuation of his Divine Sense in the rock formation in front of the Demon Rat!

There's something in the rock formation!

Although this divine sense was extremely weak, Fang Zhuo's divine sense was so sharp that he could still clearly perceive it. He carefully covered his senses, and was shocked to find that there was a strange thing in the rock formation, struggling forward!

This is............?

Yun Rong, who was also able to perceive all this with the help of Fang Zhuo's divine sense, shouted in surprise, "Could it be an earthworm?"

Belch............. Fang Zhuo looked at this huge guy with a diameter of more than a foot and a length of more than two zhang, and he didn't want to believe that this was an earthworm. However, his intuition told him that it was definitely a mutated earthworm. Moreover, judging from the fluctuations of its divine sense, it has also turned into a demon.

This magical giant earthworm can actually walk through the rocks without hindrance, looking at its actions, it is obvious that it is very good at controlling the spiritual power of the earth attribute. However, the two demon rats were much faster than it.

In the blink of an eye, the demon rat had smashed the rock, revealing the tail of the earthworm.

The giant earthworm tail retracted desperately, and then puffed back, and a large stream of brown-black liquid gushed out!

The two demon rats couldn't dodge, and they were sprayed all over by the liquid. Suddenly, there was a squeak and screams in the cave. This liquid obviously had an extremely strong corrosive effect, and Fang Zhuo could clearly see that the rocks splashed by the liquid were actually constantly emitting green smoke and turning into ash!

He saw the green smoke rising from the two demon rats, and the two guys jumped up and down in pain, but it seemed that the damage caused by this liquid was only to their fur, and there was no major damage.

Sure enough, after a moment, the mottled and bloody demon rat with corroded fur pounced again. This time, the giant earthworm could only resist it by condensing its body shell into stone with a spell.

The two demon rats each bit the giant earthworm in one bite, then dragged it up and ran deeper into the cave.

Fang Zhuo immediately asked Yun Rong to follow.

Although the giant earthworm was bitten, it was extremely powerful, constantly twisting and struggling. Its shell was now as solid as stone armor, and it was not so easy to bend its body, but it could smash deep pits into the ground and the walls of the cave with one slap at a time.

The cooperation between the two demon rats is extremely tacit. One of them is mainly responsible for pulling, and the other jumps back and forth from side to side, occasionally feinting at the earthworm's head to distract it. They worked together to slowly drag the giant earthworm deeper into the cavern.

Because they constantly have to fight with giant earthworms along the way, the speed of the two demon rats is really not fast. In this way, Yun Rong was able to calmly follow.

The cave gradually extended underground, and Fang Zhuo felt that they had passed through at least three layers of a huge network of caves to the lower ground! These rat demons had been active in the underground for I don't know how many years.

However, Fang Zhuo was surprised to find that most of these caves were very small the further down they went, and it was impossible for such a huge rat demon to pass through. He took a special look, and it seemed that these tall rat paths had not been established for a long time.

Just as he continued to observe and doubt, the two demon rats in front of him finally arrived at their destination.

It's a large underground space, and it looks like the rats have dug it up. Many demon rats are running around in it, and it looks like there are at least a few dozen of them. And when Fang Zhuo's divine sense extended into the depths of the cave, Fang Zhuo was stunned!

In the middle of this underground cavern, a huge bluestone stands abruptly there. The appearance of this bluestone is irregular, but the overall appearance is basically round. A huge black shadow lay on the edge of the bluestone, faintly revealing a powerful aura.

Fang Zhuo looked at it from a distance in surprise, this black shadow and this bluestone didn't look simple!

The surface of this bluestone is covered with the teeth and claw marks of the demon rats, but it can be seen that all the efforts of the sharp teeth and claws of these demon rats on this bluestone are in vain. Judging by the thick stone chips on the ground and the bluestone on the walls of the entire cave surrounding the cave, they took great pains to dig this bluestone out of the stone layer completely, so much so that such a large cave was dug out of the ground. However, when it reaches the core, this bluestone is already many times harder than steel. These demon rats were helpless after all their efforts, so there was such a big rock left in the middle of winter.

Fang Zhuo could now be sure that there must be something strange about this big bluestone, maybe there was something good hidden in the stone.

However, what he is most concerned about at the moment is the dark shadow.

Seeing that the two demon rats dragged the giant earthworm to the black shadow, the demon rats in the cave squeaked and hid aside. Fang Zhuo felt very strange, how could he see the prey coming to the door, these demon rats actually dodged away instead of rushing forward?

At this moment, two red lights suddenly flashed in the cave.

Fang Zhuo was taken aback. Originally, the eyes of these demon rats were emitting red light, but now these two red lights are extremely obvious, like two red pillars of light.

Fang Zhuo saw that it was a big black shadow who opened his eyes.

This was actually a huge demon rat! It was lying there, and its body was already nearly two zhang tall! Fang Zhuo secretly estimated that this guy's size was about the same size as Feng Lei's original size!

Such a big guy must not be easy to deal with.

Fang Zhuo stared at it intently, and saw that its mouth opened slightly, and a pale red light shot out, and it actually cut the giant earthworm that was two feet away into two pieces at once!

The giant earthworm sliced in two pieces rolled all over the ground, but the injury was clearly not fatal to it. However, at the site where it was cut, a yellow sphere rolled out.

The shadow opened its mouth and sucked, and the yellow ball flew into its mouth.

The black shadow took the yellow ball from the giant earthworm's body, and the two demon rats were only one and a half, guarding the prey and began to feast.

At this time, Fang Zhuo received the divine sense of wind and thunder.

"It's a very rare demon beast Ning Dan, and I think it should be of great use to the Lord's green golden worm. "With this passage, there is also an introduction to this demon beast Ning Dan. It turned out that this was something condensed by some demon beasts in a unique environment because they were unable to digest and absorb the energy they inhaled into their bodies. This kind of demon beast Ning Dan is all pure demonic power purified aura.

"What rank do you think it is?"

Feng Lei replied: "It is definitely a second-level mutant demon beast, and its strength is only a few points weaker than that ancestral copper." This guy is a genuine second-level mutation, not on the same level as the blue frost ice centipede you dealt with before. ”

Fang Zhuo nodded. He also knew in his heart that although the Blue Frost Ice Cedipede belonged to a second-level mutant demon beast, because the mutation came from the leakage of the Xuanhu condensate, it had only absorbed it for a short time, and it had not yet obtained enough strength from the Xuanhu condensate.

This guy in front of him is obviously a little trickier.