Drink Black Tea Calmly at Hogwarts

　　 A total of seven secret roads leading to Hogsmeade were drawn on the map of the spot detained by Zhang Xu with various excuses.

　　 According to the Weasley twins back then, Filch knew four of them, and the twin brothers knew the other three, including the one that collapsed a few years ago.

　　 And in this Death Eater's sneak attack, it was the one that was blocked because of the collapse.

　　 On the map in Dumbledore's hand, there are four other roads leading to the depths of the dense forest, and one dense road leading directly to the bottom of the lake.

　　 Considering the background of the construction period of Hogwarts Castle, it is not surprising that there are so many escape routes.

　　 Dumbledore estimated that the map passed down from generation to generation by the principal did not include all the secret passages.

　　On the map provided by Dumbledore, there is only one secret road leading to the Forbidden Forest, and the rest collapsed.

　　 The inside of the secret passage leading to the bottom of the lake was fine, but the exit above the bottom of the lake was blocked by unsuspecting fishermen with stones.

　　 Of the four secret passages that Filch of Hogsmeade knew, three of them had collapsed in the past few years, and only one remained usable.

　　 In other words, Zhang Xu needs to set traps in the three tunnels leading to the Forbidden Forest and the four tunnels leading to Hogsmeade.

　　 After Zhang Xu explained his trap design ideas and principles to Dumbledore, Dumbledore immediately approved his plan.

It’s just that Zhang Xu has limited materials at hand, and can only set up a trap for the secret tunnel today, so Dumbledore asked him to set a trap in the secret tunnel that the Death Eaters used last night to prevent the Death Eaters from using it again. Secret roads.

　　 After coming out of the principal’s office, it was already dinner time, and Zhang Xu, who was already hungry, walked to the cafeteria.

　　 Today is the last day of the Christmas holiday. All Hogwarts students have returned to school. Everyone is in the cafeteria discussing the harvest of the holiday while waiting for dinner to begin.

　　 However, the surprise attack on Hogwarts last night quickly spread from Peppies to the students.

　　 This incident quickly caused an uproar among the students. Coupled with the news that Azkaban escaped from prison in the Daily Prophet, various rumors began to circulate among the students.

Zhang Xu found Fred and George who were chatting with the classmates at the Dean Lion’s desk, and gave them a piece of parchment. He said, “It’s ten minutes and eight o’clock tonight. Go to Filch's office to find him."

　　 Then ignored the dumbfounded twin brothers and walked straight back to the long table in the Eagle House to eat.

　　 Fred and George arrived at Filch's office on time. After reading Zhang Xu's note, Filch handed them a huge toolbox.

　　 After taking a box of tools and materials for repairing the wall hole from Filch, the twins followed Filch’s instructions to the mirror on the fifth floor.

　　 Zhang Xu was already waiting here with Pippi Gui.

　　 Zhang Xu beckoned the twin brothers to follow, and then took them and Pepy Ghost into the secret tunnel behind the mirror on the fifth floor.

The reason why I brought Fred and George to help today is because they are familiar with the secret roads everywhere, and on the other hand, they are reminded so that the Death Eaters will not die, but they will not die. A person who likes to drill secret roads died in a pit.

It’s not an exaggeration to describe Hogwarts’ secret road with nine turns and eighteen bends. After not knowing how many walks and stairs in the secret road, Zhang Xu and Pepigui finally came to the place where it collapsed. .

　　 Along the way, Zhang Xu told the twin brothers what happened last night, but concealed the content that the Death Eaters were led by Snape.

　　 After learning that the Death Eaters sneaked into Hogwarts with the mouse biscuit they invented, both Fred and George were taken aback.

　　 "The deformed biscuits you will sell in the future can shorten the effective time to less than one minute." Zhang Xu said to the two of them.

　　 At this time, they had already reached the obstacle, Zhang Xu pointed to the half-collapsed hole and said: "If their deformation time is less than a minute, maybe they will be stuck in the hole."

　　 Hogwarts' secret passages are all built of stone, and they are fairly solid, but they have not been maintained for hundreds of years, and some collapses are inevitable.

　　 At the collapse site in front of me, the stone slab at the top of the secret road was pressed down by a huge rock and mud together.

　　 A huge rock is located just above the dense road and has not been found. This is very dangerous during tunnel construction. Because the boulders in the soil are invisible, when the soil under the boulders is hollowed out, the boulders can easily collapse the tunnel under the action of gravity. Such cases can be filled with the blood and tears of tunnel construction.

　　 It seems that magic was used in the construction of the secret road at that time, which made the huge rock collapse the secret road hundreds of years later.

　　 Zhang Xu observed the hole where the Death Eaters drilled for a while, and found that this side of the boulder was slanted, and the upper area was covered with mud. The back half of the hole was stone and the first half was mud.

　　 After the Death Eaters got here, this section of the soil had collapsed a lot.

　　 Zhang Xu stabbed the surrounding soil with his magic wand a few times, making the soil appear to have collapsed naturally and blocked the hole.

　　 After all, Shenfeng Wuying can only drill holes, but cannot reinforce the walls.

　　 Zhang Xu looked around again, and found that the collapsed boulders and mud had blocked the dense road tightly.

　　 After checking the scene, Zhang Xu began to arrange tasks.

　　 "Pippi, you can find all the vents from here to the previous corner."

　　 "Fred and George, after you find the air vents at Pippi, block them all, it is best to block them so that there is no trace in the secret tunnel."

　　 The twin brothers had no objections, and followed Zhang Xu's instructions and started to block the vents with Pippi.

　　The vents in the secret road are very hidden, but there is a Pepi ghost who is a guest on the ground, and the vents will soon be found through the ventilation ducts in the dirt.

After Zhang Xu walked to the first corner and chose a place, he drilled a hole with a thick wrist in the stone slab on the top of the secret road, and then turned into a herringbone ladder. After climbing up, he stuffed a piece of C4 into the hole. , And then plugged in the detonator and fuse.

　　 While trying to estimate a place that would not be affected by the new collapse in the next secret passage, Zhang Xu took out a gas tank from the treasure bag and put it there.

　　 Wait until all the vents are blocked, and then blow up this secret passage. This section of the secret passage forms a confined space. This tank of gas just changed on New Year's Day is enough to turn it into a gas chamber.

　　The unpleasant smell accumulated over hundreds of years in the secret road should be able to make the Death Eaters ignore the unpleasant smell of ethyl mercaptan in the gas.

It’s just that in the future, when I’m too lazy to run the kitchen, I can’t secretly cook and eat in the dormitory~www.readwn.com~According to the working regulations of the house elves, let them send the food to the professor’s office and the professor’s dormitory. Yes, but not to the public dormitory.

　　 A trap is as simple as possible. Simple sometimes means fewer flaws, and fewer flaws means it’s hard to find.

　　 It would be better if the Death Eaters smoked a cigarette to calm down.

　　 After the twins and Pipigui blocked all the vents, Zhang Xu lit a long fuse, and then led everyone to run away.

　　 After a loud "bang", the shock wave ran across the secret road. Fortunately, Zhang Xu added a shield to everyone, so everyone was fine except for being shaken by the loud sound.

　　 After the dust settled, Zhang Xu and the others returned to the explosion site and found that this secret passage had been destroyed by the explosion, and that this section of the secret passage had been blocked by mud and rocks.

　　 After checking that there was no gap that would cause a leak, Zhang Xu let Pippi go through the obstacle and unscrewed the valve on the opposite gas tank.

　　 After Pippi returned, Zhang Xu left the secret road with them.

　　 Zhang Xu estimated that it would be enough to purchase many bottles of carbon monoxide from the Muggle World. After all, the bottles cannot be brought out by this method, and the odorless carbon monoxide is more concealed than the gas with ethanethiol added.

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