A few days later, the time comes Monday. This day is the time for Alcatraz Island to deliver food once a week, and the internal defense of Alcatraz Island will be a little more relaxed than before.

Usually, Madison takes advantage of today's opportunity to investigate the Alcatraz Prison. For safety reasons, Tang Tianyou took a few days to get familiar with the routes on the map before starting his action today.

"Is this card the permission card for Alcatraz Prison? Although the permission it has is just about entering the elevator, that's enough. Where did that guy Madison get it?"

Tang Tianyou looked at the exquisite white card in his hand and thought in his mind. However, after thinking for a while, he gave up. He naturally had his own means to do this matter. As for what means, he didn't need to explore it.

It’s like ordinary humans enjoy the convenience brought to themselves by high-tech items such as home appliances and cars, but do everyone have to understand in-depth how these things are made? The answer is obvious.

It is around eight or nine o'clock in the morning, and all the prisoners in the prison went to the training room to train, and there were almost no people on the cell.

Relying on the map sign and avoiding the monitor along the road, Tang Tianyou looked around vigilantly and found that no one noticed him, so he accelerated directly, like lightning, and arrived in front of a metal wall.

"It should be here." Tang Tianyou recalled the information he saw, and used the card in his hand to sway towards the empty metal wall in front of him.

An old-fashioned electronic sound "dripped" inside the wall. The metal wall that seemed to be without any strangeness suddenly cracked from the middle and was neatly divided into two halves, revealing a rectangular passage. Looking down, it was just bottomless.

Dong!

A metal elevator slowly rose from under the passage, and then with a click, it fitted completely on the ground, and the elevator stayed on the ground.

Seeing that the elevator had arrived, Tang Tianyou quickly walked in, and another "drip" sound of old-fashioned electronic sound, and the metal walls were completely closed.

There is a green button on the elevator floor above the wall, namely the first, second, third, fourth, fifth, sixth, and the first floor on the ground, etc. The prison guards of Demon Island use this elevator to enter and exit the Demon Island.

You can't take such a lift without access to the permission card, but Madison is indeed very capable and doesn't know where he got this permission card.

However, Tang Tianyou did not plan to take the elevator, because no matter what floor you enter or exit, when you open the door of the elevator, you will not see the road to light, but the prison guards with real guns and ammunition on their bodies.

"According to the map display, I should be walking here." Tang Tianyou took out the map and took a closer look, then looked up at the corner above the elevator.

In the corner of the elevator passage, there is a long escalator. This escalator leads to a vent set in the middle of the passage, which should have been left for the maintenance of the vent.

"Okay, let's go." Tang Tianyou grabbed the baffle of the vent, and with a little force, he pulled the baffle of the vent. The vent was very narrow, and at most it could only make an adult crawl over lying down.

"However, it's really narrow here." Tang Tianyou got into this ventilation duct and felt the pressure around the wall. If his body was bigger, he might not be able to pass through this passage.

After expressing his feelings, Tang Tianyou continued to climb along the ventilation duct, because there are many roads in the ventilation ducts in the Alcatraz Prison, and there are often various channels connected together, so you don’t know where you lead.

Fortunately, Tang Tianyou has this map given by Madison, which avoids the large amount of time exploring here and the risks encountered.

As Tang Tianyou slowly crawled upwards, I don’t know how long it took, light gradually appeared in the dark ventilation duct. This light was not the incandescent light emitted by the underground prison, but the real sunlight.

"Have you reached the ground?" Tang Tianyou was delighted and accelerated his crawling speed. He entered the interior of the Demon Island Laboratory along the downward sloping ventilation duct.

Occasionally, when passing through the vent, Tang Tianyou even saw a staff member wearing a white coat and a mask passing by under him.

With blonde hair, blue eyes, and an eagle-like nose, they all speak American English, and obviously they are all American laboratory researchers.

"It seems that I've really reached the ground and I'm going to look for their main lab next, where the perfect formula for the primary life agent should be there, and a series of experimental data."

Tang Tianyou is uncertain, and may be in a more secret place. After all, the information in Demon Island Prison is top-secret, and no one except the insiders knows the situation.

He could only explore carefully like this. Even if the exploration process may encounter great dangers, it is an inevitable thing.

"You can't go down here." After passing a vent, Tang Tianyou observed the situation below. Due to the narrow exit and limited places to see, it was impossible to determine whether there was a monitor on the nearby ceiling.

Moreover, the lights are on in the room at this exit, so if you go out from this place and if there is really a monitor outside, then he will definitely be seen.

After all, although he can use his hearing ability to observe whether there are any living objects around him or some subtle objects, he still has no choice but to do things like pinhole cameras.

For his 100% safety, Tang Tianyou would definitely find a safer place and get out of the ventilation duct. Anyway, he still has a lot of time now.

…………

"Someone entered and exited the elevator? Why did the elevator stay in the third underground prison?" The monitoring room of Devil Island was full of large screens, and the staff were busy everywhere, carefully observing the strange situation on the screen.

One of the white men in black uniforms pointed to the strange information he found and turned around to ask a white companion who was eating a burger.

"I don't know, maybe the machine is malfunctioning. According to my information, no one comes in and out of the elevator." The white man who was eating the burger explained without caring.

I don’t know how many times a similar situation has occurred. Machine failure is actually very normal. After all, the equipment on the entire Alcatraz Island is very large, so it’s not surprising that there is a problem somewhere in it.

"Send someone to check it out. We are responsible for surveillance of the entire Alcatraz Island and must not be taken lightly." The white man in a black military uniform ordered.

"Okay, you are the commander, I'll listen to you!" The staff bit off the burger and stood up helplessly and ordered the technicians to go down and investigate.
Chapter completed!