As I walked along the bloodstains, I soon came to an office.

After the end of the extreme cold and snow disaster, the city's power system was destroyed, and many door locks on the floor of the central building were picked open by survivors.

Obviously, the survivors here are constantly active on this level.

Li Yuanxu's gaze swept over the gap in the old door lock, and he squinted his eyes to let his subordinates step into this office.

"No one!" Liang Boshi stepped into it, he looked left and right, and was suddenly a little surprised.

The carpet outside the office was covered in blood, and the survivor who had never met seemed to have rubbed it on purpose, scraping it off.

In addition, along the way, the blood stains are not so obvious, so there are no blood stains in this office at all.

"Someone, that person hasn't left here!" Wang Hu said.

The traces of blood stopped at the door, but the smell was not!

Whether it was the faint smell of blood, or the smell of blood mixed with the smell of blood, the smell of belonging to the survivor was permeating this office.

"Where did the people go?" Wu Xinghuo also stepped into this office, he walked left and right, but he didn't see any traces.

But judging by the cleanliness of this office unlike any other venue, it's clear that the survivor is here a lot!

It's a pity that although Wu Xinghuo is also a physical ability, he is completely different from Wang Hu in the direction of beastification, he has not improved the sensitivity of his sense of smell, so he can't continue to chase!

"Here!" Wang Hu didn't sell it, and the big boss was still waiting behind him!

He followed the smell to a desk, and then pointed to the top of the desk, where there was an exhaust fan!

Li Yuanxu also walked over, he looked at the exhaust fan, and then looked at the room, and he said, "This survivor is cautious!" ”

Judging from the layout of this room, the desk seems to be a very normal furnishing under the exhaust fan, but judging from the faint indentations on the carpet and the overall incongruity, it is clear that the original position of the desk is not here!

It was the survivor who moved the desk to this position, and the purpose was obviously the location of the exhaust fan!

And in order to make the current position of the desk 'reasonable', he even dealt with the layout of this office, and the cabinets and the like were all moved!

"You go up and have a look!" Li Yuanxu ordered a thug who was not particularly burly.

"Okay!"

The thug was not ambiguous, he stepped on the desk, ripped off the exhaust fan, and then he grabbed the sides with both hands and made a force, which was to easily probe his upper body into the ventilation duct above his head.

"Big boss, there are traces of someone's actions inside!" The thug shouted.

The ventilation ducts in reality are very different from those in the movies, and in reality they are often full of dust and many places are impassable!

That is to say, the central building is a landmark building, and the height and breadth are sufficient, so that people can move in the ventilation duct, and it is impossible to get into it if it is replaced by other places!

"Follow up and see what's going on, be careful, stay safe!" Li Yuanxu said.

The thug he chooses is also particular, this thug is not only physically 'slender', but his ability will not bring about a big change outside the body!

In this way, this survivor can also exert his strength in the ventilation duct!

Another person, such as Wu Xinghuo, if he uses his ability in the ventilation duct, he will either be strangled alive by the pipe and unable to move, or the pipe will burst...

……

The thug answered, and went down the inside of the ventilation duct, and Li Yuanxu and the others listened to the sound below and followed closely below.

There are also some people who were ordered out by Li Yuanxu, and they went to other offices and looked at the ventilation ducts!

Soon, these people rushed to report the situation.

"Big boss, two of my positions have been artificially disassembled, but they have been reinstalled!"

"It's the same on my side, there are traces of action in it, but it's dusty!"

“……”

Li Yuanxu nodded when he heard this, and his face was contemplative-

There are traces of artificial dismantling, indicating that this survivor does not know the route of the pipeline, so he has to 'minesweep' the general, a little bit of temptation, and finally choose the office where the blood stains have disappeared!

So what's in this building, it's clear that there are many places to hide, why is this survivor so aggressive?

And why should you be trapped in this location where there is not much food when you can escape?

He knew too little about this building, and Li Yuanxu couldn't analyze anything useful.

But he understands one thing, that is, people after the end of the day will never do useless work, but only do it for themselves or for something else......

Li Yuanxu said: "Next, follow below, if there is any situation in the ventilation duct, we can also support in time." ”

The thug in the ventilation duct had been in contact with the walkie-talkie, and he was inside the ventilation duct, following the trail of the survivors' movements.

Finally, he stopped in one place, and he was stopped by Li Yuanxu and others!

"If you go up further, you'll get out of this floor and into the next floor!" Li Yuanxu stopped the action of the thugs in the pipeline through the walkie-talkie, he thought about it, and asked Wang Hu and the others to divide into four teams and enter the 25th floor to search!

"You guys go up first, wait for the 25th floor to be cleared, contact through the walkie-talkie, and I'll follow up when the time comes." Li Yuanxu commanded.

He took Lao Zhengzhi, Biao Feizhang and Huang Yasui to stay on this floor, and waited until he was sure that there was no danger on the 25th floor, and then the thugs in the pipe entered the ventilation duct on the upper floor, and then he took 3 people into the upper floor!

……

Soon, the 25th floor was cleared, and there were more than 20 zombies on this floor, all of whom were killed!

Then the zombies on the 26th floor were all cleaned up, and there were fewer zombies on this floor, only more than a dozen zombies!

By the time they reached the 27th floor, the thugs in the pipe finally got out of one of the exhaust fans!

The survivor who killed a zombie on the 24th floor did not stay on the 25th and 26th floors, but climbed directly to the 27th floor, and only then did he get out of it!

It's just that there are no traces of survivors in this layer, but there are not many traces of zombies in this layer!

Li Yuanxu frowned, he glanced at the exhaust fan drilled out by the thugs, and then looked at the desk under the exhaust fan, and he said, "Search this floor again!" ”

Climbing two floors of ventilation ducts in quick succession was no easy task, and he didn't believe the survivor would do it without a special reason!

"Search in detail, don't miss the places where you can hide people!" Li Yuanxu explained.