The two security guards took a closer look at the repair tools inside the black cat's bag and were convinced of his identity as a maintenance worker.

However, one of the security guards stared at Lin Feng and asked, "Then who is he?"

Without waiting for Lin Feng to speak, the black cat introduced: "He, he is an apprentice I brought with him, and he eats with a mouthful." ”

The two security guards didn't say anything more, but they didn't let them in.

"Wait, let's go in and make an announcement. "Just to be on the safe side, one of the security guards went inside to report.

The remaining security guard pulled out a pack of cigarettes, smoked one, and smoked it.

Lin Feng casually glanced at his hand, which was full of calluses.

"It seems that he is indeed the killer of the dark dragon, and the killer actually came to see the door, and there must be a hidden dragon and a crouching tiger inside. Lin Feng said silently in his heart, maybe the boss of the dark dragon was also inside.

The hands are full of calluses, and at a glance, you can tell that you are exercising regularly, and only those who practice martial arts will have so many calluses on their hands.

Black Cat and Lin Feng waited anxiously outside the door.

In order not to let the killer of the dark dragon recognize him, Lin Feng was in the van, he had already undergone a disguise, his appearance had changed drastically, and there was an extra scar on his face.

He had dealt with the killer of the dark dragon a lot, and if he was not tolerated, he would definitely not recognize him.

After a few minutes, the security guard inside walked out, looked at the black cat and Lin Feng and said, "You guys go in, but we remind you, you just need to fix the broken pipe, don't walk around, otherwise we won't be responsible for the accident." ”

In the past, there were also maintenance workers who walked around in it after repairing it, and one was electrocuted and one drowned.

So the security guard reminded them before they went in.

"Don't worry, we'll leave after repairing, where is the leisure time to visit the scenery of the sewage plant. ”

After the black cat finished speaking, he and Lin Feng hurriedly walked in.

Another security guard led the way, otherwise the black cat wouldn't know where the pipe was broken.

The huge sewage treatment plant, covering an area of tens of thousands of acres, has intricate equipment, and there are many chimney-like things erected high, constantly white.

Inside the sewage plant, the sound of running water is constantly coming out.

There are also many workers who are busy with the work at hand, they only care about their work, and they don't care about Lin Feng and Black Cat and others.

The security guard had been leading the way in front, and when he reached a remote corner, he walked down a horse staircase.

This staircase is under the ground, the black cat didn't expect such a coincidence, the entrance to this underground secret passage is below.

Those killers must be down there.

Lin Feng and the black cat followed the security guard and went down the underground sewer together.

The area under the sewer is almost as large as the area above the ground, and there is water underneath, and there is a constant sound when you walk on it.

The underground pipes below, the size of five or six buckets combined, are the pipes through which the sewage is transported.

"That's it. ”

The security guard walked for a while and then stopped.

Lin Feng looked at his side, and sure enough, there was a pipe that was constantly leaking.

The black cat immediately handed the bag to Lin Feng and took out a few tools from it.

The valve was closed before repairs began.

Seeing the black cat skillfully start repairs, he used a wrench to keep opening the screws on it, and the security guard had no intention of leaving.

Lin Feng looked at him and asked, "Are you just fixing a water pipe, don't you need to stare here, you also checked it just now, we don't have explosives or anything on us, and we won't blow up this place." ”

"Okay, then you guys get out of here as soon as they're repaired, or we'll not be responsible for what happens." The security guard scratched his head and walked up reluctantly.

After watching the security guard leave, Lin Feng looked at the black cat and said, "What should we do now?" This underground waterway is like a maze, how can we find it?"

"Let's fix the water pipes first. Black Cat said.

Due to the disrepair here, the fixed place next to it is rusty, which is why it keeps leaking.

After replacing the rusty area with a new one, it was all over and it didn't take long.

"You go over there to look for it, I'll look for it from here, ten minutes even, whether you find it or not, come back here and gather. After the black cat finished, looking at Lin Feng, the two were ready to look for it separately.

"Good. ”

Lin Feng nodded, and quickly started looking to the left, while the black cat went to the right.

Two people can save a lot of trouble by looking for it separately, after all, there is a lot of space underneath, and it is not easy to find it.

A lot of pipes here are staggered, and the stagnant water under your feet rattles.

There were quite a few rats crawling past Lin Feng's feet, and bursts of foul smell came out, which was very unpleasant.

Lin Feng covered his nose and kept walking forward.

After walking for a few minutes, I found that there were three or four passages in front of me.

There are quite a few pipes that pass through these passages.

Not long after walking, Lin Feng found that this place had come to an end, and he retreated again and entered another passage.

The other passage is connected to one of those very small pipes, and there is a lot of space in the passage to pass through a truck.

Looking at the ground, there are no footprints except for stagnant water, so the dark dragon should not be hiding here.

If you hide here, you will leave footprints if you walk past it.

Nothing was gained, Lin Feng exited this passage again and walked towards the last passage.

At this time, Lin Feng heard heavy footsteps, coming from nearby.

Listening to the voice, there are probably two people.

And the sound was getting closer and closer, Lin Feng held his breath and hid behind the huge pipe.

Sure enough, two tall people walked past Lin Feng, and after bypassing Lin Feng, they didn't know what button they pressed on a pipe, which could accommodate five or six people through the huge pipe, which was actually opened.

The two men quickly walked thousands of years inside the pipe, and the inside of the pipe turned out to be empty.

Lin Feng had always thought that this pipe was full of water, but it seemed that they were very hidden, and they actually sealed the passage and used the pipe as a channel.

Ordinary people wouldn't think that this is the entrance, but the people of the dark dragon are really full.

After remembering this huge pipe and leaving a few marks here, Lin Feng retreated to the time when he came in just now.

It was ten minutes later, and the black cat came out from the right.

He didn't expect Lin Feng to come out early, it seems that he should have a lot of gains.

"How's it going? Did you find anything?" asked the black cat with a serious face.

Lin Feng knew that the black cat was looking for it, otherwise he wouldn't have asked like this, and there would definitely be nothing to find.

"Naturally, their entrance is hidden in a huge pipe, and through that pipe, it should be possible to find their base camp. Lin Feng said silently.