About 300 meters in front of Qin Yi, he sensed two cameras. Qin Yi looked left and right, pasted his figure against a slightly concave place on the cave wall, and carefully examined it with his divine sense.

The two cameras flashed a faint red light, and they should have night vision function, it seems that this Nine Yin Sect is not completely isolated from the world, at least this technology is now fully utilized.

Behind the camera is a stone door, which looks similar to the stone walls of a cave, and you can't see it if you don't look closely. The stone gate should be electrically controlled, and Qin Yi sensed the deeply buried wires in the mountain walls on both sides of the stone gate.

The stone gate is only 2 meters high, but the space behind the stone gate is very open, just Qin Yi's divine sense senses are more than 200 meters deep, and the top of the space is at least more than 20 meters from the ground. In this area near the stone gate, there are no buildings, only a few broken sarcophagi and some messy pottery vessels.

As for the living person, Qin Yi only found one, with a congenital 3-layer cultivation, a thin body, dark yellow skin, and a cold breath. The man sat cross-legged in an open sarcophagus with several dried bones scattered around Zhou Wei.

Qin Yi carefully explored the area again, then stopped staying, quickly turned around and retreated along the cave.

"You take someone to continue to guard here, and I'll go back to the headquarters first."

Qin Yi explained to the people in the 3 groups, and then dodged away.

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In the base headquarters, Qin Yi briefly told him what he had discovered.

The fifth master thought for a moment and said;

"According to what Qin Ye said, that cave should be a backup passage, and there will be several such passages in ordinary underground bases or ancient tombs. And the space behind the stone gate should be a rare cave space. According to rumors, hundreds of years ago, there was a special human race, they did not like sunlight, they liked to carve space in the interior of some mountains, and lived in seclusion. Some people call it [Caveman] or [Cave Man], and the space discovered by Qin Ye should be the underground cave where the caveman lived. ”

The fifth master paused, gave everyone a moment to digest the information, and then continued:

"But in fact, cavemen are not human beings at all, they are a kind of ape, and they can't practice the exercises of cultivators. As for the few cases that have been discovered in the past few decades, that is, a few people who have seen through the red dust hid in caves to live, and were accidentally discovered and exaggerated to attract people's attention. The true caveman became extinct more than 100 years ago. ”

Qin Yi also added at this time;

"That's true, the point I can detect is only more than 200 meters, and only one human cultivator has been found, and no other species have been found."

"That's it, this cave should have been discovered by the Nine Yin Sect by chance after the cavemen became extinct."

After the fifth master finished talking about some of the professional knowledge he knew, he stopped speaking. Xu Da then went down to analyze.

"Then we can assume that this cave is the lair of the Nine Yin Sect, and that cave is one of the alternate passages. There must be another alternate channel and a main channel, and we have to find all of them. ”

Liu Donghai also expressed his opinion at this time:

"Since the cave is under the Golden Peak, then the other peaks will be put aside for the time being, and all our people will be arranged to Zhou Wei of the Golden Peak Peak, and they will go up along the peaks and valleys to gradually investigate, which can shorten a large part of the time."

"It's better not to interfere with that cave first, even if someone enters or leaves, don't startle the snake. Wait until all channels are located before making arrangements. ”

"Okay, that's it."

Xu Da and Liu Donghai quickly notified all the teams outside and quickly did not know how to arrange the action.

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After the plan was adjusted, the speed of investigation increased rapidly. Three hours later, Group 2 and Group 6 successively discovered two hidden caves, after Qin Yi personally explored, he found that the situation inside was similar to the first cave, and several people in the command headquarters summed it up, and they didn't make much arrangements for the time being, just sent people to monitor nearby.

After another hour, Group 7 finally discovered the cave suspected to be the main passage, and Xu Da hurriedly ordered Group 7 to stay away from the passage immediately, hide and wait for the notification.

In the base headquarters, Xu Da spoke:

"At present, 3 spare channels have been found, 1 main channel, and the investigation scope has covered 70% of the area of Jinding Peak, I suggest that everyone be withdrawn to rest first, and then check for another day tomorrow to ensure that all channels are checked out and then specify the final battle plan."

"At the same time, the local government and tourism management department were notified that all tourism projects in Wugong Mountain will be suspended from now on, and people will be sent to arrange for the safe evacuation of tourists on the mountain."

"In addition, inform the members of the Xuanzhan Department on the Luxi County Investigation Team to meet at the base headquarters tomorrow."

In the innermost corner of the headquarters, there were several simple mobile homes, one of which was divided between Qin Yi and Fan Xiaoying.

"Sister Ying, this operation will come to an end at noon tomorrow, and then you will evacuate first with Team Leader Liu and the technicians of the alliance's special forces, and wait for me in Luxi County, and I will look for you as soon as the mission on my side is over."

"Well, I know that my low strength can't help, but you must protect yourself, if you really can't do anything, withdraw it first, and think about it in the long run. Xiaohan and I can't live without you. ”

"Fool, don't worry, on this planet, there may be people who are higher than me, but there will definitely be no people who can keep me."

"Well, when you come back, we'll play in Luxi for a few more days, and the scenery here is really good."

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As soon as it was dawn the next day, the members of the Xuanzhan Department on the side of Luxi County secretly arrived at the base headquarters, led by another deputy minister of the Xuanzhan Department, Zhong Liang, a congenital 4-layer cultivator, the same as Xu Da.

There are a total of 2 deputy ministers of the Xuan War Department, all of whom participated in this operation, which shows that the alliance and the Xuan War Department attach great importance to this operation.

At 7 o'clock, the headquarters held a meeting, and Xu Da and Zhong Liang redivided the more than 40 innate members of the Xuanzhan Department into 10 groups, a group of 4 people, and all of them were sent out to continue the investigation. It was not until 12:30 p.m. that all the teams completed their tasks and reassembled at the headquarters again.

"Everyone has worked hard, after lunch in a while, we will do the last investigation, I hope you must be careful, before 5 o'clock in the afternoon, regardless of whether the investigation task is completed or not, all must return to the base to gather."

"Understood."

Everyone else went out to prepare, leaving only Xu Da, Zhong Liang and Liu Donghai, and Qin Yi also went out to see Fan Xiaoying.

"Minister, I want to stay. In fact, everyone knows that the actions at night will definitely be extremely dangerous, we know too little about the Nine Yin Sect, and I am also a congenital 3rd layer cultivator, and I am also the leader of the C group, so I should not retreat at this time. ”

"It's not that you want to back down, because you are more familiar with the seniors, let you escort Ms. Fan and non-combatants to retreat, and the seniors are also relieved. You have to stay by Ms. Fan's side all the time. ”