When the Ghost Howling Slope appeared on the horizon, Chen Ziyang saw the yellow sand balls flying in the sky from a distance.

The yellow sand completely obscured the Devil's Howling Slope, probably because the wind strength of the black tornado had weakened, although the yellow sand was floating around the Devil's Howling Slope in the air, but the speed was not fast. From a distance, the yellow sand did not have its former destructive power, but was as weak as a crop wilting under the scorching sun.

Chen Ziyang didn't expect that after these few days, these yellow sand had not yet fallen, and it seemed that the black tornado should still exist. I don't know if the weather forecast for the past few days has reported any strange phenomena here, but it is very likely that no one has seen such a spectacle except for their people because it is inaccessible here.

Looking at it from a distance, Chen Ziyang felt that the scope of these yellow sand seemed to be smaller than when it erupted before, because around this large mass of yellow sand, a piece of dry yellow grass formed a sharp contrast with the surrounding green grassland.

When the three cars drove to the front of the yellow sand, Chen Ziyang knew that the range of the yellow sand had not decreased, and the huge yellow area on the ground was not caused by the fall of the yellow sand, but that all the grass here had withered.

Looking at the large amount of withered grass, Chen Ziyang was surprised. It's really strange, how can all this grass wither for no reason? Grabbing a handful of yellow grass on the ground, Chen Ziyang tried the feel of the grass, and all the moisture in the grass disappeared, and the soil on the ground was also covered with traces of cracks.

grabbed a piece of soil on the ground casually, Chen Ziyang's fingers were a little hard, and these clods turned into a pile of yellow sand in his hands, and the moisture in the soil disappeared completely. It's only been a few days, and the place seems to have suffered a ten-year drought, which is so unusual, where is the water in the soil and in the grass?

After Liu Cong and the others also got out of the car, Chen Ziyang wanted to go up to them to discuss a way to see which way should be used to enter the Ghost Howling Slope. The destructive power of these yellow sand storms before Chen Ziyang and the others still remember it vividly, and they don't want to rush in this weathered pickup truck anymore, it's too dangerous.

Liu Cong and the others had obviously made preparations based on the situation introduced by Chen Ziyang before. They all got busy, first pulling out a folding table and two folding chairs from the compartment, then two people with two laptops on the table and sitting there connecting to some other equipment, while a few people climbed onto the top of a truck compartment and lifted the huge canvas.

Seeing what was under the canvas, Chen Ziyang knew what professionalism was. Covered under the canvas is a huge quadcopter with four propellers. In recent years, Chen Ziyang has also seen this kind of aerial camera, and many of them are sold as toys.

This kind of thing flies relatively high, and the range of remote control is relatively far, and the aircraft flies relatively smoothly, and is often used for some aerial photography or reconnaissance, but the largest of those aircraft he looks at is only a few tens of centimeters, and at this time, this kind of quadcopter drone under this canvas is five or six meters wide, which can be regarded as a behemoth.

Liu Cong said hello to Chen Ziyang, saying that they wanted to take a look at the situation in the yellow sand from the air first, so as to confirm the next move, of course Chen Ziyang had no opinion, the three of them curiously gathered behind the chair of the computer operator, and carefully watched them debug this kind of flying machine, it was too professional.

After one of the people sitting in front of the computer pulled the joystick on the controller in his hand, the sound of the motor starting came from the direction of the aircraft, and the four propellers of the aircraft slowly rotated, and then the aircraft slowly rose, and then rose higher and higher, and the speed became faster and faster, flying towards the top of the yellow sand mass that covered the Ghost Howling Slope.

There is a semi-circular sphere attached to the underside of this kind of aircraft, and when the aircraft lifted off before, Chen Ziyang saw that there were many cameras directly below and next to this sphere, and the images of the two laptops were divided into four parts.

The two computers add up to eight screens to display different scenery, it seems that this kind of aircraft can transmit back the picture taken by the camera on the aircraft in real time, and the clarity of the picture is particularly high, looking at the speed of the scenery moving on the screen, the delay of picture transmission is also very low. It's so convenient and so easy to use.

The two people operating the aircraft visually inspected the position of the aircraft while analyzing the picture on the computer, but fortunately, although the height of the yellow sand group was high, it did not exceed the flight height of the aircraft, and the aircraft flew steadily from the top of the yellow sand group to the center of the yellow sand group.

A large amount of yellow sand scrolled on the computer screen, and then one of the people operating the computer enlarged the picture taken by a camera, and all the people saw that the yellow sand quickly regressed on the screen, and after waiting for a few minutes, the picture finally changed, only to see that the entire computer screen suddenly turned from yellow to black, apparently the aircraft had flown to the center of the yellow sand.

After reaching the position, the aircraft was raised a little higher, so that the image in the center of the yellow sand mass was larger, and a black whirlpool appeared on the screen. Unlike the slowly fluttering yellow sand, this black tornado vortex rotates very fast, and if it weren't for this whirlpool, the surrounding yellow sand would have fallen to the ground.

Chen Ziyang was a little worried at this moment, originally he thought that after so many days, this black vortex should have weakened a lot even if it did not disappear completely, but now this is not the case. The black tornado was still full of momentum, and it looked like a monstrous beast roaring with all its might.

With this black tornado, it is estimated that the wind near the tomb must be quite strong, and if a large number of large stones and fragments of urn coffins are still suspended around the tornado, it will be dangerous for these people to enter there.

Then the person operating the computer opened some kind of analysis software, around the black tornado, one after another green and red squares appeared on the screen in turn, and these squares were still rotating with the direction of the tornado, Chen Ziyang looked carefully, there was a small black dot in each square, it seemed that this analysis software marked the large objects around the tornado.

Looking at the more and more dense squares on the screen, Chen Ziyang's heart was cold, can this still get in?

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