When she returned to her quarters, she lay on her bed facing the wall as usual.

Before she could open Gu Qingqiu's box, Jin Xiaohua's low voice suddenly came from next door: "Ye Dill, what did you say to Gu Qingqiu before?" ”

Jin Xiaohua's voice is not too high, but the walls here are very thin, and Ye Dill can hear it clearly.

Ye Dill thought for a second and replied, "Discussed the next plan." ”

"Is there a plan for that?" Jin Xiaohua asked very actively.

"Almost," said Dill Ye, "I'll tell you later at supper." ”

After receiving such an answer, Jin Xiaohua seemed to be quite satisfied, and she did not continue to ask.

Only then did Ye Dill open the small box in her hand.

Inside the box was a blue-green tin frog with a clockwork on one side of its body, which was supposed to be made to make the frog jump forward by turning the clockwork.

And under the tin frog, there is a neatly folded piece of paper.

The material of that paper doesn't seem to be very good, the paper is thin and brittle, and it seems that the slightest carelessness will tear it up.

Ye Dill carefully pulled out the piece of paper and opened it slowly.

On the paper was a complete topographical map of the prison, and even the interior decoration of each room was detailed to make it clear how each room was different.

There are also some marked routes on it, which should have been marked by Gu Qingqiu himself, and they are the few escape routes he had chosen before.

Ye Dill took a look at it and found that the route Gu Qingqiu chose was indeed more suitable according to normal.

There are fewer turns, fewer turnoffs, and fewer exits, and fewer lines of defense and security systems to break through. Nuancai Literature Network

But there are too many unopened rooms in those lines, and it's hard to say if the security system will be breached.

This should also be the most important reason why Gu Qingqiu has not carried out prison breaking.

Ye Dill looked at the location of the marked exit again.

There are only two serious exits in this prison, one is where the prison guards go in and out of work, and the other is where supplies are transported in and out.

After all, this is a real prison, and there must have been many real prisoners living in the past, and the supplies needed for food and clothing, as well as the garbage generated every day, need to be transported by an import and export.

Therefore, it is normal to have an entrance and exit for the transportation of materials.

And the two exits are located in completely opposite directions, one is on the north side and the other is on the south side.

Ye Dill took a closer look at the room closest to the two exits.

The closest room to the entrance and exit of the prison guards is the police hall, and if you can get out of the ventilation duct of the police hall, you can reach an elevator in just a few minutes, and this elevator leads to the exit.

According to the markers on the map, the elevator is not open at present, but as long as you can reach the elevator and climb up the elevator shaft, you will definitely be able to climb to the ground.

Even if there is an elevator door on the ground, you are not afraid, and you will definitely be able to split it with a sword.

The closest to the entrance and exit of the cargo transportation is a refrigerated warehouse, which is also connected by an elevator, but here is a cargo elevator, which is larger.

But the elevator didn't open either.

However, the frozen warehouse is open, and there are still a lot of materials in it.

After clarifying the location of the two rooms, Ye Dill first asked the replica to find out if the vents in the two rooms were connected to the intricate ventilation ducts.