The Obsidian Worm's claws that could easily cut through the corpses of first-order mutant beasts actually suffered a great loss here with Zhang Mu, and it was unable to squeeze in. Its own speed, which had just suddenly increased, was forcibly slowed down to zero.

Compared to the Obsidian's confusion and unwillingness to accept it, Zhang Mu was already beaming with joy.

Unexpectedly, the strength of this mental barrier is so high. However, it cannot take the initiative to attack and is purely for defense. However, even with this, Zhang Mu is now satisfied, because what he was most worried about originally was that he lacked too much in mental defense. Now, his relatively obvious loophole has become one of his strong abilities by accident, which is something he never expected.

Now, not only has the mental defense been qualitatively improved, but the mental power has become strong enough to easily withstand the physical attacks of second-level mutant beasts like the Obsidian Worm. Moreover, Zhang Mu feels that this ability is not only in defense, but can definitely give the opponent a fatal blow in close combat.

However, the Obsidian Bug was not convinced. It felt that it had lost the battle in front of Zhang Mu by not even breaking his mental barrier. It sent a message to Zhang Mu in its mind, "I wasn't prepared just now. I just bumped into him. Let's do it again."

Zhang Mu didn't care at all. The obsidian worm didn't break through the defense of his mental barrier at all, so it didn't consume much of his mental power. From his perspective, it was just a ripple on the barrier.

He also wanted to see the limit of this mental barrier, but he didn't know if the Obsidian could do it.

After getting Zhang Mu's permission, the Obsidian Worm retreated a long distance again, and was 20 meters away from Zhang Mu.

Zhang Mu narrowed his eyes and looked at the obsidian worm in the distance. He also began to be on high alert, releasing all his mental power naturally, and under the guidance of his ability, he evenly scattered it to every part of the barrier.

Of course, he tried to concentrate his mental power on one point, but it was extremely difficult for him now. He could not change the mental barrier that had already been formed, so he had to give up.

He was too greedy. He had just advanced to the second level and he wanted to use the abilities skillfully. It was simply wishful thinking. The abilities at each stage needed to be mastered and improved slowly through continuous use.

Just as Zhang Mu was thinking, the obsidian worm moved. Its two wings rose and fell, gathering strength. The dust under its hind legs slowly rose up and involuntarily gathered around its wings.

Moreover, at the same time, Zhang Mu could clearly sense the changes in the air.

It's the wind!

The obsidian worm is gathering the power of wind. Yes, it is a mutant beast with wind attributes. Zhang Mu has not seen it manifest itself when it is at the first level. It should be mastering this ability after breaking through the second level.

Spirals of wind slowly gathered around the wings of the Obsidian Worm, becoming stronger and stronger, and they were still gathering!

Zhang Mu's eyes narrowed. It seemed that the Obsidian Worm had been provoked this time. He didn't know whether his mental barrier could withstand the full force of the Obsidian Worm. The main reason was that the Obsidian Worm's momentum was too terrifying. The roofs of the surrounding houses were blown off one after another. The strong wind that had originally subsided became violent again under the call of the Obsidian Worm and began to rage near the Obsidian Worm. However, the Obsidian Worm seemed to be in the center of the storm, standing still, and slowly accumulating strength.

The whirlwind wrapped around the wings of the Obsidian Worm, and not a single airflow escaped. Zhang Mu saw that the Obsidian Worm had summoned all the airflow within a radius of one thousand meters onto its wings.

For some reason, Zhang Mu felt somewhat guilty. This time, the Obsidian Worm really used all its abilities.

boom!

The obsidian stopped absorbing wind energy. Its wings could no longer be seen. They were wrapped in layers of air currents and stretched out to a length of nearly five meters. Its wings, which were originally only one meter long, had been expanded to this size.

It seemed that maintaining this kind of power had reached the limit of the Obsidian Worm. If it didn't release it, the Obsidian Worm would lose control of the power of the wind. However, it still reminded Zhang Mu in his heart, "If you don't control it by accident, it might get out of hand. Be careful. If you can't handle it, retreat. If you can't handle it, I don't know how much I can take back at once. This power is a bit out of control, because this is the first time I use it officially."

Zhang Mu hummed heavily in his heart. If the Obsidian Bug didn't put pressure on him, he wouldn't be able to tell where the maximum limit of his mental barrier was. Now it seems that this

The power of the test should be enough.

After getting Zhang Mu's permission, the Obsidian moved. Its body seemed to break the speed of sound. Before Zhang Mu could even blink, it had already arrived in front of him with two pairs of eye-catching wind wings.

“Here it comes!”

Zhang Mu had just heard the warning sound of the Obsidian Worm when he felt two heavy blows coming from above to the top of his head. The two wind wings raised up and slashed down at Zhang Mu who was standing there.

It stopped one meter above Zhang Mu's head. Where the mental barrier and the wind wing touched, a large amount of energy collided every second.

“Click, click.”

The moment they faced each other, spider-web-like cracks appeared on the mental barrier and continued to expand.

"Do you want to stop?" The Obsidian asked at this time, "If you stop now, I can still disperse most of my power."

It was obvious that he saw Zhang Mu's decline, but Zhang Mu was still stubborn and wanted to see the limit of his mental barrier, so he gritted his teeth and replied, "Keep going, don't stop!"

This was Zhang Mu's order, and the Obsidian Worm had no choice but to obey. It pressed its wind wings down suddenly, and both wings burst out with power at the same time. A large amount of air flowed out from the place where it touched the mental barrier.

The cracks continued to increase, and the Obsidian Worm's wind wings changed their offensive strategy, continuously striking down at the invisible barrier above Zhang Mu's head, alternating without giving Zhang Mu any chance to fill the gaps with his mental power.

Finally, the cracks in the mental barrier overlapped to the point where they were about to break.

With a crackling sound, the mental barrier was completely torn apart. Once a hole opened, the others were also shattered.

Zhang Mu was ready to evacuate from his original position, but he suddenly discovered a very strange phenomenon. Although the cold wind continued to blow in, the attack of the obsidian worm did not stop.

It turned out that while the Obsidian's mental barrier was being worn away, the wind energy that had just been excessively accumulated by the Obsidian was also directly worn away.

In other words, this time, the mental barrier constructed by Zhang Mu with all his mental power was evenly matched with the excessively concentrated wind energy of the obsidian worm.

(End of this chapter)