"Ground?"

Huang Bin immediately leaned down and almost lay on the ground to observe.

Weizel went on to explain: "Yes! It's the ground! Perhaps people have a preconceived impression and ignore the mechanism on the ground......"

The people of the rescue team cheered and all gathered around, while Wei Zede calmly pointed out to everyone.

"This ...... This...... And here...... To open the secret cave, in addition to the corresponding techniques, you also need to step on these places! ”

After carefully looking at the hidden switch located on the ground, Professor Liu said with some emotion: "It is worthy of 'Wei Sanye', the observation is subtle!" Xiaobin, your stinky temper should be restrained......"

Huang Bin stood up, patted the dust on his body, and was silent.

"That's it! Now that the secret cave has been opened, let's get ready to go, right? ”

Zheng Hongzhi, the captain of the rescue team, said loudly: "Before leaving, I need to confirm the number of people again!" Comrades whose names are called, please raise their hands. ”

"Liu Kai'an!"

"Huang Bin!"

"Wei Xiaoning!"

"Li Daoyi!"

"Qi Wei!"

"Qi Meng!"

“……”

After the roll call, Captain Zheng Hongzhi once again emphasized the precautions, and then he ordered Lieutenant Du Xuyao to assign several soldiers under him one by one, so that each rescue team member had a special soldier for personal protection.

"Let's go!"

With the order given, the group of mermaids entered the secret cave.

Compared to the cool and damp inside the Gaxian Cave, the tunnel behind the secret cave was cold and dry, and everyone who walked into the tunnel couldn't help but shiver.

"From now on, everyone must be vigilant!"

"If it is not necessary, the 'Wolf Eye' flashlight can only be turned on in turns!"

"The walkie-talkie should also be turned off after it is commissioned, and everyone must try to remain silent as much as possible......"

Captain Zheng Hongzhi, who was walking in front of the team, instructed while slowly moving forward to open the way.

So the crowd marched silently in silence.

The tunnel is relatively narrow, and at most two people can walk in parallel, but the road under your feet is very smooth, and it should have been polished manually.

At the front, center, and rear of the team, three soldiers each use "wolf eyes" for lighting, which allows the team in the dark to move forward relatively smoothly.

Wei Zede and a soldier were at the front of the line, followed by Captain Zheng Hongzhi who opened the way, Li Daoyi and another soldier followed behind him, Professor Liu, Huang Bin, Lin Pengyi and others were in the center of the team, and then Qi Wei, Qi Meng and others and the soldiers who protected them, and Lieutenant Du Xuyao was personally responsible for breaking the rear.

After about ten minutes of the rescue team's journey, a faint, rustling sound came from the tunnel ahead.

Captain Zheng Hongzhi immediately raised his right hand and clenched his fist, signaling the team to stop moving forward temporarily.

"There is a situation! I'll go check ...... first."

Captain Zheng led a soldier into the dark tunnel.

"Wei Xiaoning, what's wrong ahead?"

Li Daoyi, who was behind Wei Zede, asked in a low voice.

"I don't know! There seems to be some sound......"

After a while, in the nervous mood of everyone, Captain Zheng returned to the team with a walkie-talkie that did not turn off the switch.

"Lin Pengyi! Come and see, is this the walkie-talkie you lost here? ”

Lin Pengyi walked over from the center of the team, he picked up the walkie-talkie and looked at it, but shook his head and said, "No!" You see, there is a special number on the back cover of the walkie-talkie...... This should be Captain Liu's walkie-talkie! ”

"Something is wrong!"

"Lin Pengyi, according to your previous report, Captain Liu and they disappeared more than an hour after departure, and the walkie-talkie could still receive their signal at that time, right?" Captain Zheng asked.

"That's right!" Lin Pengyi nodded and replied in the affirmative.

"The walkie-talkies used by the archaeological expedition are all military, and the range is about 5,000 meters, which may be even smaller considering the complexity of the terrain!"

Captain Zheng analyzed and said: "This shows that Captain Liu and the others must be within the range of 5,000 meters!" Under normal circumstances, a person is able to cover a distance of 6,000 meters in one hour...... No matter how slow the speed is, Captain Liu and they should walk 3,000 meters in more than an hour! ”

"So far, our rescue team has walked less than 1,000 meters...... In other words, Comrade Liu Ru's walkie-talkie should not appear in this position! ”

"Could it be that Captain Liu, after they encountered danger, retreated back and retreated here?" Lee Dao-il suggested a possibility.

"That's not right either! It took me only six or seven minutes from the time Captain Liu exclaimed on the intercom to the time I entered the tunnel and encountered smoke and hurriedly returned...... At such a short time, it is impossible for the archaeological expedition to return here! And the two screams I heard were faint and unclear, which also showed that Captain Liu was still a long way away from me! Lin Pengyi immediately retorted.

Captain Zheng stared at Lin Pengyi and asked, "Comrade Lin Pengyi, what you said before was 'you can clearly hear two screams', why has it become vague and unclear now?" ”

Lin Pengyi blushed: "This is not a contradiction!" 'Hear clearly' means I do hear screams...... 'faint, unclear' means that the sound I hear is intermittent...... Captain, are you suspicious of me? ”

Captain Zheng looked at Lin Pengyi's excited expression and didn't seem to be fake, so he comforted and said, "It's not that I doubt you, I just want to reconfirm!" ”

Qi Wei muttered in a low voice: "Then how to explain this situation?" ”

"Hey! Wouldn't it be a 'ghost'? ”

Huang Bin's unintentional words immediately made everyone feel a cool breeze running down their spines.

Wei Meng's face changed, and he shouted very dissatisfiedly: "Bah, bah! You crow's beak......"

"What? You folk strangers, still believe in the existence of ghosts and gods? ”

Huang Bin said in a mocking tone: "...... It's so bold that it's very small! ”

Qi Wei said angrily: "There is a kind of you saying it again!" ”

Qi Meng was not to be left behind: "You know a fart!" ”

The two brothers drank together and asked, "How do you know that there are no 'ghosts'?" ”

The twins were like a lit cannonball, and they were about to start with their eyes blazing.

"Shut up! Look at yourselves, what are you like? ”

Captain Zheng Hongzhi blushed, "The rescue work has just begun, are you going to fight among yourself?" ”

"Humph!"

Qi Wei, Qi Meng and Huang Bin snorted coldly at the same time and stopped talking.

"Keep going!"

Captain Zheng Hongzhi said coldly, and then he led the rescue team to continue to move forward.

Although the marching procession remained silent, a shadow called "ominous" had been cast over everyone's hearts.