Zhou Shu searched his memory, went through the types and weaknesses of the demon beasts that matched this habit in his mind, and thought of a plan to deal with it in advance.

When the evil qi gradually began to subside, Zhou Shu slowly walked towards the valley.

The valley is unusually deep, with strange rocks, accompanied by a cold atmosphere, very gloomy.

Zhou Shu released a simple shield technique to resist the evil qi.

Evil qi is different from the cold qi that only erodes the body, it can even invade the sea of consciousness, affecting the cultivator's divine consciousness and mind, causing the cultivation of true divine consciousness to be greatly damaged, becoming insane, and even violent and murderous.

Knowing the sea is invaded by evil qi, not only is the damage extremely great, but it is also difficult to remedy, the sea of knowledge is more difficult to recover than the sea of qi or the qi vein, no pill will work, only a very small number of innate treasures can do it.

However, Zhou Shu didn't worry too much, although the evil qi was powerful, only a few special demon beasts or soul beasts could specifically use the evil qi to attack cultivators, and there would never be that kind of terrible thing here.

And most of the evil qi that is emitted like this is an unconscious action, and it only takes a little spiritual power to resist it.

After walking for nearly a mile, Zhou Shu didn't find anything, but the deeper the valley went, the darker it became, unlike most valleys that became more and more open, if it weren't for the fact that he could still see a glimmer of blue sky overhead, he would almost suspect that he had gone to the cave.

Whew!

As he was walking, there was a strange roar in front of him, mixed with the sound of many wings waving, as if he was rushing towards this side.

Zhou Shu was distracted, and hurriedly took a few steps back, leaning against the mountain wall and staring ahead.

A group of black pressed things flew over at a rapid pace.

They look a little strange, like birds but not birds, their wings are as thin as paper, and they are slightly transparent, their tails are forked like swallows, and the most striking thing is that their eyes, red as fire, still with a bloody smell.

Zhou Shu looked carefully and felt relieved.

It's a group of swallow-tailed bats, non-entry-level demon beasts, even if it's a high-level bat king, it's just a first-order.

But their appearance here is a bit strange, although swallowtail bats like to live in groups in gloomy valleys, but generally speaking, where there are demon beasts, there are very few ordinary monsters to live, this group of swallowtail bats is an ordinary monster beast, should not live here.

Without waiting for Zhou Shu to think about it, the swallowtail bat had already discovered him, opened its mosquito-like sharp beak, and pounced towards him.

The cloud-chasing sword flew up, turning into a hundred and ten cold rays, and every time the sword stretched out, a swallowtail bat would fall to the ground.

But these swallow-tailed bats seemed to be unsparing their lives, and attacked Zhou Shu one after another, like moths to a fire, and after a while, a large number of swallow-tailed bats fell at Zhou Shu's feet.

It took nearly a quarter of an hour for the attack of the bats to slow down, but by this time there were only three of them left in the huge swarm, and all the others were dead.

These three were all bat kings, staring at Zhou Shu with red eyes, screaming, and attacking Zhou Shu in three directions.

Zhou Shu's expression was awe-inspiring, without a trace of fear, and the cloud-chasing sword in his hand shone even brighter.

I had a deeper understanding of the Rapid Rain Sword Technique before, and now there are demon beasts to try the sword, which is great.

The speed of the Bat King is extremely fast, and he changes his position dozens of times in an instant, and Zhou Shu's sword is also changeable, no matter how the three Bat Kings toss and turn, they will never be able to break through Zhou Shu's sword rain.

However, the sharp fangs kept colliding with the cloud-chasing sword, making a clanging sound.

The sword trial lasted for about a quarter of an hour, and Zhou Shu seemed to have an understanding, and the sword in his hand became faster and faster, like a thunderstorm. Only three wails were heard in succession, and the Bat King fell down one after another, completing their mission.

Zhou Shu looked around and felt slightly shocked.

Within three or five zhang of the surrounding area, there are swallowtail bats everywhere, roughly counting thousands of them, layered on top of each other, like fallen leaves in the woods, which makes people feel terrified.

It's really unreasonable, it's rare for a demon beast like a swallowtail bat to take the initiative to attack a cultivator itself, let alone such a suicide attack like a moth fighting a fire.

Zhou Shu thought for a while, and gradually understood.

The swallow-tailed bat should have been infected by evil qi, and the evil qi entered the brain, so it became so crazy.

This group of swallowtail bats has always lived in this valley, and then there was an invasion of demon beasts, and they were reluctant to leave their place of residence, so they lived with them, but after a long time, they were infected by a lot of evil energy, and they became like this.

Judging from the analysis of the degree to which this low-level demon beast swallowtail bat can withstand evil qi, the demon beasts in this valley have not been here for a long time, about less than half a year.

Thinking of this, Zhou Shu put down a lot of heart, in such a short period of time, it seems that there will probably be no corpse monsters here.

The teeth of swallowtail bats are an ordinary refining material, and there are only tens of thousands of them here, but Zhou Shu didn't have time to pick them up one by one, so he only cleaned up the three bat kings and continued to explore the valley.

If you have time back, you can clean up.

The valley is getting deeper, and the bloody aura is getting thicker, and the remains of demon beasts can be seen from time to time, and the demon beasts are basically first-order, and they have all become the prey of demon beasts, and they still have some traces of being bitten.

Zhou Shu became more and more cautious and moved forward step by step.

When I walked to the middle of the valley, there was an extra road in front of me. Zhou Shu didn't think much about it, and just walked along the side where the anger was heavy.

At the end, the path was blocked by a steep mountain wall, and there was a dark hole in the mountain wall, about a foot wide.

The cave is pitch black, deep and tortuous, you can't see the specific situation at all, and there is a constant evil aura coming out from the edge of the cave entrance, which is getting more and more intense, and it is obvious that the demon beast is in it.

Without the release of divine sense, it is really difficult to detect such a cave, but after taking the task, you can only bite the bullet.

If you wait for the demon beast to come out to forage at the door, it will be more difficult to deal with the hungry demon beast, and now that the demon beast is full and sleeps inside, the chances are even greater.

Entering the cave, I have walked less than three feet, boom!

A slender black shadow slammed towards Zhou Shu with lightning speed.

The cave was so small that there was nowhere to dodge, so Zhou Shu could only retreat backwards. But the black shadow was extremely fast, and it flew in front of Zhou Shu in an instant.

Zhou Shu could only stretch out his arm to block.

Hearing a crisp sound, the bracer on his arm immediately shattered into several pieces.

But Zhou Shu also took advantage of this block, and quickly retreated with the power of the counterattack and swept outside the cave.

When he raised his hand to look, a deep dark blue was left on his arm, obviously the black shadow was amazingly powerful, not only did it shatter the wrist guard of the first-order lower grade magic weapon in one fell swoop, but even his golden glass was a little unbearable, if it was an ordinary cultivator, I was afraid that the arm would be broken at that time.

Zhou Shu looked at the cave with a calm expression, "Who, come out!"

The black shadow of Shicai was definitely not an attack method of a demon beast, he could see it clearly, it was 100% a jet-black long sword!

There are cultivators in the cave!