Chapter 1802 Disturbing Sound Waves

Chen Yang, Yu Ziwen, Jiang Wentao, and Yan Guinan took the Longwu boat until they reached the mountains three hundred miles south of Futu River before stopping.

This mountain range looks very ordinary, and its feng shui is also very ordinary. Except for some ordinary families living on the edge of the mountain range, there is no human habitation in the depths of the mountain range.

Most people would never imagine that there is an ancient tomb hidden in this mountain range.

Chen Yang and four others flew down from the Longwu Ship, flew at low altitude in the mountains, and rushed towards the entrance of the ancient tomb.

Ke Zeyao's hand-drawn map clearly marks the geographical location.

But even so, they searched for two hours before they found the entrance.

The four of them stopped in front of a large tree with a diameter of seven or eight meters. The tree was more than fifty meters high and had luxuriant branches. It was unknown how many years it had been. The growth rings on it were so blurry that they could not be seen. Not sure.

At the bottom of the big tree, there is a tree hole, about two meters wide and two meters high.

The tree hole was dark, and the inner wall of the tree could be vaguely seen.

According to the markings on Ke Zeyao's hand-drawn map, this tree hole is the entrance to the ancient tomb.

Although the tree hole may seem ordinary, as long as you walk inside, you can enter the ancient tomb.

At this moment, a fat squirrel came out of the tree hole, looked at Chen Yang and the four of them, and then walked into the jungle like flying.

Although it was fleeting, Chen Yang and the four of them all sensed that the squirrel had a decaying aura, and it had obviously been in a closed underground space for a long time.

"Let's go."

As the team leader, Yan Guinan took the lead into the tree cave.

His figure gradually faded, and finally disappeared completely.

Jiang Wentao glanced at Chen Yang and walked into the tree hole for the second time.

Chen Yang and Yu Ziwen also walked in.

After walking into the tree cave, the scene in front of them changed instantly. The four of them were in the cave, on the edge of a cliff. In front of them was an abyss. On the opposite side fifty meters away, there was a huge palace with a plaque hanging above the door. , but there’s not a single word on it.

Yan Guinan looked towards the abyss and shot a stream of true energy into the abyss with a snap of his finger.

"Chi chi chi chi..."

That zhenqi was like poking a hornet's nest, and bursts of sharp sounds came from under the abyss, which was very harsh.

Immediately afterwards, bat-like monsters flew up from the abyss, numbering at least two thousand.

However, these bats are not powerful, they are just red-clawed bats in the late stage of pill formation.

The four men from Chen Yang took action one after another and quickly cleared away these red-clawed bats. The remaining few fled and returned to the abyss.

"This first level is too easy."

Jiang Wentao put away the Yuanyang Sword and looked at Chen Yang, as if he was mocking that the obstacles set by Chen Yang's ancestors were too low-end.

Yan Guinan glanced at Jiang Wentao and said in a deep voice: "The appearance of red-clawed bats is often accompanied by the red-clawed bat king. Don't take it lightly."

Jiang Wentao said disapprovingly: "The Red Clawed Bat King is just a fourth-level extraordinary monster. It poses no threat to us at all, so why should we care."

Yan Guinan's eyes flashed with displeasure, but he still explained patiently: "For every ten red-clawed bats, there may be one red-clawed bat king. In other words, there may be hundreds of red-clawed bat kings who will lead from Emerge from beneath the abyss.”

After hearing this, Jiang Wentao changed slightly.

Although hundreds of red-clawed king bats would not kill them, they could still cause quite a bit of trouble.

And if you are accidentally dragged down into the abyss, it will be pitch black underneath, and you don't know what kind of crisis lurks there.

Suddenly, the sound of flapping wings came from under the abyss, the sound was like a tornado, whirring.

Immediately afterwards, more than two hundred giant red-clawed bat kings were seen flying up from the abyss.

These red-clawed bat kings did not make any sound, but the ferocious evil spirit shrouded the sky above the abyss, which was terrifying.

More than two hundred red-clawed bat kings attacked at the same time, and their momentum was quite terrifying.

Jiang Wentao, Ke Zeyao, and Yu Ziwen immediately took action and attacked the Red Clawed Bat King.

Their realm is too high, and they can often kill one with one sword.

But they found that Chen Yang stood there and did not take action. Instead, he took out a strange machine of unknown origin from the ring and tinkered with it there.

"Chen Yang, what are you doing, not taking action?"

Jiang Wentao looked angry and roared at Chen Yang.

As soon as he finished speaking, suddenly, the originally ferocious Red Claw Bat King seemed to have gone crazy. He no longer attacked Yu Ziwen and others, but just flew around randomly, bumping into each other. ,

Their speeds are extremely fast, and they often suffer serious injuries when they collide.

For a moment, blood spattered in the air, and successive collisions killed and injured most of the Red Claw Bat King.

The remaining red-clawed bat kings were like headless flies, stumbling towards the abyss.

Seeing the last red-clawed bat king hit hard on the cliff of the abyss, and then fell into the abyss, Yu Ziwen, Jiang Wentao, and Yan Guinan couldn't help but twitch the corners of their mouths, wondering what happened. .

When the scene completely calmed down, Yan Guinan muttered: "These red-clawed bat kings seem to have been disturbed by something and lost control of their flight direction."

He looked at Chen Yang, turned his eyes, and landed on the machine beside Chen Yang. He asked thoughtfully, "Junior Brother Chen, was it you who did this?"

Chen Yang nodded and said with a smile: "Senior Brother Yan, you are smart."

Hearing this, Yan Guinan, Yu Ziwen, and Jiang Wentao all had surprise in their eyes.

Chen Yang managed to kill more than two hundred red-clawed king bats without even making a move. This method was too incredible.

Yu Ziwen stepped forward and asked, "Chen Yang, how did you do it?"

"Although the Red Clawed Bat King is a monster, he is still a type of bat. Bats rely on sound wave reflection to determine direction, distance, and location when flying."

Chen Yang pointed to the machine next to him and continued: "This is an ultrasonic emitter. After I turned it on just now, the ultrasonic waves disrupted the sound waves of the Red Clawed Bat King. They received the wrong reflected sound waves, so they lost control. "

This explanation confused Yu Ziwen and the other two people, who had never studied biology or physics.

Jiang Wentao came to his senses and said coldly: "Chen Yang, don't brag. We have never heard of ultrasonic waves and reflections. What is your theory?"

Yan Guinan looked puzzled and asked: "Junior brother Chen, where did you get this ultrasonic transmitter? Forgive me for being ignorant, I have never heard of it before."

Chen Yang said: "I brought the ultrasonic transmitter from Diwu Star. At that time, I just moved some instruments and put them in the Najie. I didn't expect that they would come in handy today."

Hearing this, Yan Guinan raised his eyebrows and said: "Diwu Star, I heard that the technology there is very advanced, but the cultivation is very backward. Junior Brother Chen, are you from Diwu Star?"