This analysis also makes sense, because a long time ago it was designated as a military restricted area, but now it has been lifted, and it has become a barren land that no one notices, indicating that it must have been erased from the ground.

Even now, when I opened the map of Guqing City, there was no mark on this location, and there were several place names and village names around Yandang Mountain, but here was blank.

Han Du carried an accurate map of Guqing City in his bag, and he looked at it several times in a row, and finally confirmed that this 715 project area was indeed a place that could not be found on the map.

This can be regarded as a disadvantage, Han Du inserted the folding shovel into the soil, took out his mobile phone and searched for news about the 715 project area, not surprisingly, there is almost no information about this place on the Internet, but I saw a post two years ago in the gossip and secrets section of an adventure forum, which seemed to be here.

The title of the post is "Shocked, Disappearing Mysterious Engineering Area, the Unknown History of Guqing City's Past", the post was sent by a netizen with the ID of "Tianwang Gaidihu 666", looking at the information displayed in his account, it is an 18-year-old local boy in Guqing City.

He mentioned in the post that he heard from the older generation that in the early days of the founding of New China, there was a large area in Guqing City that was classified as a military restricted area, and there was a rumbling sound of machinery running every day, and no one knew what was going on inside.

In the post, he also asked if there were any locals in Guqing City who had also heard of this place, and could anyone provide more information about it?

However, his posts were not followed, with only a pitiful 50 visits, and none of them were replied to.

Han Du logged in to this adventure forum with QQ and tried to send a private message to this person: Hello, are you still there? I just saw this post, as far as I know, the place you said is called 715 Project Area, at the foot of the mountain on the east side of Yandang Mountain, do you have any more news about this place?

Han Du also just sent a message with the idea of trying his luck, two years have passed, maybe he has long forgotten this account.

The result was unexpected, the other party was still logging in to this account, and immediately replied: I'm here! Oh my God, someone finally got back to me! Are you in the location of that engineering area?

Han Du replied: Yes.

Okay, you wait for me, I'll rush over right away! In the past two years, I have collected a lot of information about that engineering area, and I will tell you when I meet! But what do you call it the 715 Project Area, but this is the first time I've heard of it!

When Han Du saw the last sentence, he felt that he seemed to be a little unconvinced, about this place is called the 715 Project Area, which is provided by the system, and it is absolutely not wrong, but this is called "Heavenly King Gaidihu 666", and he didn't even know the name of this place, and the news he has collected in the past two years may not be the head of the donkey, and it is probably not this place.

Han Du was worried that he would delay his mission when he came, so he hurriedly typed and said: It's so late, don't come, I'll leave when I'm done here!

However, the other party didn't know whether it was offline or deliberately ignored it, and he didn't reply to Han Du, Han Du waited for a few minutes, put away his phone, and didn't bother to care about him anymore, now the important thing is the task.

Since the system can assign tasks here, it means that there must be clues that he doesn't know, and if he can find hidden clues, it is estimated that everything will suddenly become clear.

With this belief, Han Du took a folding shovel and waved it in the weeds, while splitting the weeds, while checking the situation on the ground, and even used the shovel to look at the soil from time to time, the color and composition of the soil below were normal, if the 715 project area was demolished, under normal circumstances, it should have left some traces in the soil.

But there was nothing.

From these signs, it can also be seen that this place is very important, otherwise it would not have been demolished so thoroughly.

"Woo Woo Woo ......"

Just when Han Du was in the middle of the weeds and was at a loss, the leopard ran from a distance, and it always liked to run away from a trace along the way, Han Du arrived here, and the leopard was in the woods in the distance.

When the leopard ran to Han Du with its tail wagging, it was holding a big hare in its mouth, and it threw the hare in front of Han Du, meaning to hand over its prey to Han Du for disposal.

Han Du picked up the hare, and it felt quite heavy, how could they weigh five catties.

"Good leopard, I'll help you put away the prey first, and then go back to feed you." Han Du's slightly depressed mood relaxed a little, and then tried to say to the leopard, "You came just in time, help me find clues to the 715 project area, there must be something here that I don't know." ”

"Woo Woo Woo ......"

I don't know if the leopard can understand, but it screams a few times, then rushes into the weeds and searches around.

Han Du looked at it and thought that it should not understand what he was saying, and the reason why it reacted to his words was probably because its previous owner trained it well, and when it heard words similar to looking for something, it would obey orders.

Han Du also began to search through the weeds with a folding shovel, slashing left and right all the way, stepping on a path inside, but still found nothing, it was as if the 715 project area had never existed.

"Woo Woo Woo ......"

Suddenly, when Han Du spent an hour and found nothing here, in the grass not far away, the leopard jumped out and screamed at Han Du, Han Du knew what it had found.

He walked briskly, and the leopard turned around and rushed into the grass, digging with his front paws, causing the grass to tremble.

Seeing this, Han Du in the back had a little expectation in his heart, and went over to pull the fluffy hair on the leopard's back and let it retreat behind him.

The leopard inside had already dug up a small area, and Han Du struck it a few times with a folding shovel, and a few dull sounds came out.

Han Du obtained a hundred wilderness survival skills last time, among which was the sound of listening to the sound of the defense, this sound was a bit dull, and it was a knock sound, indicating that there must be a space underground, and the time of the knock sound was a second or two before it disappeared, indicating that the space area underground was not small.

This made Han Du feel uplifted by the previous blows, and he had a bold guess that although the buildings on the ground of the 715 project area were completely erased, in fact, the project area still existed underground, maybe the main body of the 715 project area was built underground, and the ground was just the tip of the iceberg.

There was nothing to hesitate about now, Han Du waved his folding shovel and dug hard, and soon dug up a large area, revealing a thick stone slab under the soil, the size of a table and ten centimeters thick.

Such a large stone slab is estimated to weigh hundreds of catties, and ordinary people can't move it at all, but who is Han Du, he is a fierce man who has just experienced 639 muscle strengthening, and he can kill a cow with one fist.

He immediately used his shovel to dig some gaps under the side of the slate, and then put his hands in and grasped the slab firmly, and as he calmed down, he let out a loud cry and lifted the whole slab up with both arms.

With a few clicks, Han Du's muscles were all exerting force at the moment, especially the muscles under his arms and clothes bulged, and they burst out with a very amazing force, so the stone slab turned up heavily, and it was lifted up half a meter at once.

At this time, under the stone slab, a small entrance appeared, and Han Du swept over it and found that there were steps built inside, extending to the bottom of the cave.