Just when Lin Shuang had a headache, he suddenly felt a cool breeze.

According to common sense, in this kind of underground building, in the case of no electricity, the exhaust fan must have stopped a long time ago.

If the exhaust fan is not working, then the whole space will definitely be out of air circulation, but at this time, Lin Shuang felt a cool breeze.

At the same time, Lin Shuang sniffed, sniffed hard, and found that the air was very fresh, which was definitely not normal.

Under normal circumstances, the smell of zombies is mixed with rotting corpses, which is definitely a bioweapon-level smell, and in a slightly uncirculated space, it will make people want to vomit when they smell it.

However, at this time, Lin Shuang didn't feel the strong taste at all.

What does this mean?

Lin Shuang immediately reacted, there are vents here, and they still belong to the kind of vents that can be ventilated automatically without relying on equipment.

Lin Shuang realized that there was a vent here, and his mind immediately became active.

Through the cold wind just now, Lin Shuang guessed that there would definitely be a large vent here, as long as the vent was found, it could be followed down to the subway track.

Thinking of this, Lin Shuang came to his senses and began to walk around, looking for the vent of the subway station.

Lin Shuang turned around the platform and actually made a discovery, but what he found was not a vent, but a hidden drainage ditch in the subway station.

Lin Shuang then thought that a public place like this located underground would definitely take into account all aspects when it was originally designed, and this drainage ditch was designed for flood control.

Thinking of this, Lin Shuang planned to open the drainage ditch to take a look, maybe he could reach the track through this drainage ditch.

So, Lin Shuang pried open the iron fence covered by the drainage ditch.

As a result, Lin Shuang found that the design of the drainage ditch was too picky, and the drainage was so small that it was only the size of an A4 piece of paper, and it was estimated that she couldn't get into it with the figure of Little Lori, let alone an adult like Lin Shuang.

Lin Shuangkong was overjoyed, covered the iron fence with his hand, and then continued to look for the vent with some depression.

Lin Shuang looked around in the ticket hall, but found no vents.

Lin Shuang looked very carefully, underground, ceiling, all looked at it, Lin Shuang was stunned that he didn't find the vent, and later, Lin Shuang lit a flame and found an approximate location, which was above the ticket vending machine.

Lin Shuang took a closer look and found that there was a row of iron fences there.

Seeing the iron fence, Lin Shuang understood that the location of these vents should be in the room behind the ticket machine, and then come out of the pipes connected to those rooms, and then install the iron fence, seeing the design here, Lin Shuang guessed that there should be the same design above the opposite room, which can maintain air circulation.

So, Lin Shuang took the key and began to check the rooms in the back.

When Lin Shuang inspected a dark room, Lin Shuang saw an air duct, and the square air duct was connected to the iron fence above the house.

When Lin Shuang saw it, his eyes lit up, this thing was the ventilation duct he was looking for.

However, Lin Shuang's machete is a pain.

This pipe is made of iron sheets, Lin Shuang knocked on it, and there was an "empty" sound.

To get into the pipes, you have to climb up to the iron fence at the top of the house and remove the fence to get in.

However, this method simply does not work.

Lin Shuang looked around and found that the pipe was directly pierced through the floor slab and then connected.

At the junction of the floor slabs, there was a gap, about half a meter wide, which was covered with barbed wire, and a strong cold wind blew up from the gap.

Lin Shuang compiled a fire talisman, and a flame appeared on Lin Shuang's fingertips.

Lin Shuang stretched the flames to the top of the barbed wire, only to find that the flames shook for a while, and it was obvious that the air flow from the bottom to the top was not small.

The wind here is also very strong, and it looks like it is connected to the vents.

Thinking of this, Lin Shuang planned to go down and have a look.

So, Lin Shuang told her thoughts to Xiao Lori, and asked her to wait for herself here, and then let her go down after she went down to find out the situation.

After hearing Lin Shuang's explanation, Xiao Lori nodded in agreement, but just told Lin Shuang to be careful.

Lin Shuang removed the barbed wire fence and threw a glow stick down, the glow stick fell down with a bump, and then stopped below, presumably to the end.

Lin Shuang judged the position of the light stick, and found that the distance from the current position to the bottom was a bit high, at least ten meters.

Lin Shuang leaned his back against the air duct, then stared at the wall with his feet, and began to slide down.

When Lin Shuang came to the bottom and picked up the glow stick, he found a very narrow passage.

In this passage, there are a variety of pipes and trunking. Lin Shuang sniffed the air and found that the air here was very cold and fresh, so Lin Shuang crawled forward along the passage.

On the wall of the passage, there will be a square opening at intervals, and from those openings, some cold air will blow in.

Lin Shuang looked out along those openings and found that it was pitch black outside.

Lin Shuang crawled forward along the passage, and suddenly heard footsteps above his head.

Lin Shuang was immediately alert, then stopped crawling, pricked up his ears, and listened to the movements around him.

A zombie roar came from overhead, and Lin Shuang's face changed slightly, and he looked around with some vigilance.

After a few moments, the roar overhead subsided, and then there was a rustling sound.

Through the situation just now, Lin Shuang guessed that the location of this passage should be under the platform.

Lin Shuang, who was lying in the passage, didn't feel the danger, so he continued to crawl forward.

The further Lin Shuang went, the stronger the wind in front of him became, and in the end, the wind kept pouring into Lin Shuang's neck, and the whole person felt a chill.

It didn't take long for Lin Shuang to suddenly find that the road ahead had come to an end, and a huge opening appeared in front of the passage.

The air duct extended from the outlet, and then was fixed to the wall by strips of steel bars, and then connected to a large fan, I don't know why, the fan was still rotating, and a strong wind came from the fan.

And underneath your feet, there is the track of the subway.

Lin Shuang took advantage of the glow stick to see the surrounding situation clearly.

Here, it is beyond the scope of the platform, and under his feet is the track of the subway, seeing the situation in front of him, Lin Shuang's face is happy.

Finally arrived at his destination, although Lin Shuang crawled over on the way, and his body was covered in dust, but Lin Shuang was very happy, and finally bypassed those zombies and came to the track, as long as he found the right direction and walked along the track, he would soon be able to reach the descending road. (To be continued.) )