He held the gun in his hand and slowly lowered it, but each of them looked bad, narrowing his eyes slightly, full of anger.

Although they were angry, they had to execute Abu's orders!

Of course, they are actually afraid of Zhang Lu.

The person who shot at the moment was the world's strongest hunter. Their dozens of elite warrior companions faced him in the base, but were slaughtered.

To be honest, they are afraid too!

This incident seemed to have been revealed, and these continued to follow Zhang Lu.

Zhang Lu was still exploring the caves one by one.

There was no way, he could only explore the past one by one.

However, when the investigation was also under investigation, Zhang Lu's face slightly condensed, and the two auras behind him followed more urgently, but they always maintained a constant distance.

It is obvious that these people are all masters, Abu and his elite warriors, and none of them noticed each other.

If he didn't make a sound reminder and the other party suddenly launched a surprise attack, it would definitely be Abu and the others who died.

Although he didn't know who they were, Zhang Lu could guess the other party's intentions, just waiting for him to find the entrance to the real treasure point.

Zhang Lu ignored these people and continued to search.

A day passed.

Still no gains.

Even Abu became a little impatient, and his patience was almost worn out.

At night, Abu and his confidant leader hid in a corner discussing the matter.

However, the content discussed by these people fell into Zhang Lu's ears without missing a word.

Zhang Lu closed his eyes and rested. Abu would be better off listening to himself. If he had other thoughts, he would be seeking death!

the next day.

Zhang Lu glanced at the entrance of the cave in the north.

In the past four days, they have explored more than half of the cave entrances, and now there are dozens of cave entrances in the north.

The results should be available today!

When Zhang Lu found the fifth hole.

Zhang Lu suddenly stopped, and at the same time, a voice came from his mind.

"Ding! The bat flower enters the third form!"

My mind entered the world of bat flowers!

In a cave, bat flowers are in full bloom, and bat flowers are swaying, and a faint sound comes.

The sound is very low, which is unknown to ultrasound.

As soon as he heard this sound, Zhang Lu's body immediately reacted, feeling dizzy and nauseous, and even wanted to vomit.

Zhang Lu raised his eyebrows, very surprised.

What kind of sound wave is this? How can I hear these sounds? Even people with such strong physical fitness feel comfortable.

If I hadn't mastered the ability of corpse fragrance konjac to resist dizziness and balance, I would have been shaky at this moment.

Zhang Lu has been practicing bat flowers these days, but he didn't expect that he would hear such sounds that can affect human organs when he entered the third form.

The third form seems to be very difficult!

I don't know which aspect it is for.

"Ding! The third form of the host fusion bat flower is completed: bass audio."

A stream of information poured into the brain.

Zhang Lu understood that what he had heard was the infrasonic wave just now!

There are three types of sound waves.

Normal sounds are something that can be heard by the human ear, while ultrasound and infrasound are something that cannot be heard by the human ear.

Sound waves with a frequency less than 20Hz (hertz) are called infrasonic waves.

Infrasound waves of certain frequencies are similar or even the same as those of human organs, and are prone to resonance with human organs, which is highly harmful to the human body and can cause death in danger.

In nature, sea storms, volcanic eruptions, large meteorites land, tsunamis, lightning and thunder, waves of infrasound waves hit the shore, vortexes in the water, turbulences in the air, tornadoes, magnetic storms, auroras, earthquakes, etc. may all be accompanied by infrasound waves.

In the human world, such as nuclear explosion, missile flight, artillery launch, ship navigation, cars scramble, tall buildings and bridges shaking, and even blowers, mixers, loudspeakers, etc. can produce infrasonic waves while making sounds.

Zhang Lu showed joy on his face, and could capture the infrasonic waves. In fact, no subtle sound or movement could escape his bass sound.

In this way, Zhang Lu could hear all three sound bands in the world.

This bat flower is so awesome!

The first form of silence sonar is to use environmental positioning.

The second form of high-frequency decibels is to receive the surrounding ultrasound waves, which can also act on combat, forming a special resonance method, so that the attack power will increase!

The third form is bass audio, which is specifically aimed at infrasonic waves and subtle sounds.

Sure enough, a subtle sound was sensed.

This kind of sound is a sound that Zhang Lu had heard before.

At this moment, Zhang Lu stood in front of the cave and just used ultrasound to search, and made a little strange.

But what is specific is hard to judge at once!

However, with bass audio, this is different.

Zhang Lu heard some meticulous sounds.

What does it mean when there are machinery or electronic equipment in a cave?

The entrance to the treasure at the foot of the mountain is here!

Zhang Lu's figure flashed and entered the inside of the cave.

Abu and others were stunned for a moment. After so many days, Zhang Lu was just wandering in front of the cave entrance.

This was the first time he entered the inside of the cave.

"The treasure must be here!"

Abu was excited, his dark face turned slightly red, and he ordered: "Some people were on guard at the door, while the others followed Mr. Leng into the cave."

The treasure at the foot of the mountain is the biggest treasure of World War II.

As long as it is a treasure, there will definitely be various mechanisms inside. Every treasure hiding person does not like the treasure being taken away by others!

Abu ordered the soldiers to explore the way in front, and he followed from behind.

Just five or six meters deep, there are some natural lighting holes, and the corridor is still bright.

But as we walked deeper, everyone felt a chill.

The light went dark.

However, they all brought strong flashlights, illuminating the square corridor about 3 meters wide and 3 meters high.

"snake!"

A warrior in front saw a snake.

It was not one, but densely entangled, hundreds or thousands of them. I saw the soldier's scalp tingling.

"Just avoid it, Mr. Leng is fine, what are you afraid of!" Abu shouted.

He also saw snakes appearing around the corridor, but behind him, he saw only scattered snakes.

When the strong light shone on these snakes, the snake began to restless.

ah……

Someone was bitten by a poisonous snake and cut off the poisonous snake with a dagger.

But these venomous snakes were very venomous and soon fell to the ground, flooding his body by the crawling snakes.

Many soldiers were bitten by snakes, and there were poisonous snakes inside. Once they were bitten by poisonous snakes, they did not carry anti-venomous serum and ended up dead.

The soldiers in front of them retreated one after another, not daring to go deeper.

"This is a snake cave, you can guard the surroundings at the entrance of the cave!"

After Zhang Lu finished speaking, he went straight into depth.

Abu walked up to the front and saw the dense snakes, and felt a little creepy.

But why is cold diamond okay?

He seemed not afraid of snakes at all, and it seemed that these snakes did not take the initiative to attack him.

Abu couldn't understand and guessed that the other party must have some special means, which made the snakes feel scared.

It would be impossible to let them stay at the entrance of the cave, but if they don’t go deeper in person, no one knows what treasures they have.

What if the other party doesn't give it to him?

Abu hesitated and was very unwilling to just act as the role of guarding the cave entrance!

He wants to enter the treasure and get a piece of the pie!
Chapter completed!