Jingyan of HP

In November, the weather starts to get cold.The mountains surrounding the school showed an icy gray-black color, and although the water in the black lake had not yet started to freeze, it had already become bitingly cold.Every morning, the ground outside the castle is covered with white snow.

The Quidditch season is about to begin.The first match was Gryffindor vs Slytherin.

Around eleven o'clock, the entire school seemed to have gathered in the stands of the Quidditch stadium, and many of them were wearing binoculars.The seats seem to be raised a bit, but it's still sometimes hard to see what's going on on the field due to the crowd.

Under the entanglement of his twins, Cheng Jingyan took Harry to sit in the Slytherin stands. In previous years, because of George and Fred, he came to the game to cheer for Gryffindor. This year, his family's Douding He was not allowed to do this. Even though the two of them were still in the first grade, they had already made up their minds to join their academy's team next year, so they had a sense of collective honor.Like them, Harry is very eager to join the team. Due to his excellent flying class, he has been booked by the captain of the Ravenclaw team. Next year, he will be the alternate Seeker of the Ravenclaw team.

Mrs Hodge blew on her silver whistle.

Fifteen broomsticks were raised, towering high, and the race began.

"The Quaffle was snatched by Angelina Johnson from Gryffindor all of a sudden - that girl is a really good catcher, and she's pretty."

"Jordan."

"I'm sorry, Professor."

Lee Jordan, friend of the Weasley brothers, was commentating the game, with Professor McGonagall watching him closely.

Cheng Jingyan was sitting between Russell and Harry, surrounded by Slytherins, Snape was still sitting two rows behind him, in this case, George and Fred were not far in front of him When flying over, I greeted him specially and made him feel that Yali is so big.

After Angelina Johnson scored, the Weasley twins showed their excitement by somersaulting.

Cheng Jingyan saw Russell muttering unhappily, and smiled and took out a pack of snacks to coax him.

At this moment, the Bludger rushed towards the auditorium like a cannonball. Fred noticed the situation and chased after him closely, shouting: "Yan! Get out of the way!"

Cheng Jingyan raised his head and saw the Bludger flying towards him at a high speed. After a closer look, the target was actually Harry sitting on his right. At this time, it was too late to take out his wand, so he subconsciously turned around and hugged Harry. Lee turned his back toward the Bludger.

But he didn't get hit, and the Bludger shattered just before it hit his back.He raised his head with lingering fear, and saw Snape, who was sitting two rows behind him, stood up with his wand pointed in his direction.

He was about to smile at Snape when his expression changed and he shouted, "Get down!"

He had just crouched down with Harry in his arms when another Quaffle exploded overhead, sending powder all over his head, leaving him in disarray.

Mrs Hodge blew the silver whistle and the game was stopped.

Cheng Jingyan watched him cast the Iron Armor Curse on himself and the children around him, and then sat behind him.

He turned his head eagerly and said to Dumbledore: "Principal, those two balls were obviously directed towards Harry by someone. Can I take Harry away first?"

Snape, who also came to sit behind him, gave him a sideways glance, and said mockingly, "Mr. Cheng, is your brain still there? Where are you taking your little savior? All the professors are in the stadium. If the attacker Follow you after you leave, how are you going to keep your little savior alive?"

Dumbledore nodded in agreement, "It's safer to stay here. We don't know who the attacker is yet, and it would be dangerous to leave like this."

Cheng Jingyan sighed helplessly, let go of Harry, and took out his wand to clean the dust off his head and back.

Harry looked at him with tears in his eyes, and immediately hugged his arm after he finished cleaning up, and whispered, "Don't block me next time..."

He smiled and patted the child's head, and said, "How can that be, I promised you that I will protect you. Do you think I'm fine now?"

Harry rubbed his head against his shoulder.The twins Draco and Virgil next to him leaned over to greet each other. The former touched Harry up and down to check if he was injured, and glared very covertly at Cheng Jingyan, who was held by Harry's arms; the latter Chatteringly asked Cheng Jingyan if he was in pain or if he was afraid of being stabbed or stimulated...

After finally dealing with them, Cheng Jingyan turned around and asked Dumbledore, "Can you find out who it is?"

Dumbledore shook his head: "I don't know yet." He took out a handful of candies from his pocket and distributed them to the children, then said with a smile, "Don't worry, Severus and I will protect you. We will also investigate after the end, you can rest assured and continue to enjoy campus life!"

Snape let out a snort of air in disdain.

Twenty minutes later, the Slytherin Seeker caught the Snitch and the game was over.

Ever since he was almost injured watching the game that day, Cheng Jingyan felt that Hogwarts was really too dangerous.First it was a three-headed dog and then a giant monster, and now it can even hurt people with a Quidditch ball. He began to worry about the safety of himself, his friends, and Douding.

So after thinking hard for several days, he took the opportunity of going to Hogsmeade on the weekend, sneaked into the Muggle world, purchased a lot of chemical raw materials, electronic equipment, experimental equipment and other things, and decided to use his spare time to retreat and make self-defense Weapons, as for the retreat location, is his shabby little space that will automatically recover no matter how damaged it is.

After tinkering for about a week, he produced a batch of small cloud bombs.Although he studied physics in his previous life, at that time he learned a lot in a forum that all science and technology geeks understand. It was too big, so he didn't dare to do it, so he had to compress some high-energy fuel into a high-pressure steel cylinder to make a small cloud bomb. This thing is thrown away under certain detonation conditions, and it can mix with air and explode violently, producing The shock wave is especially suitable for hitting living targets in houses, buildings and bunkers. The small ones he made... don't be afraid if you encounter giant monsters again.

In his previous life, he often went to Acfun, a video site where geeks gather, and videos of foreign technology nerds were often reprinted on it.

The so-called technical geeks are nerds who usually like to stay at home and have a deep knowledge of certain technologies.This kind of technical nerd can often reverse-port games such as "Final Fantasy [-]" to FC, that is, Xiaobawang, or try to use the map editor of Warcraft [-] to make a real movie that can be played. device.

Some technical geeks can use all kinds of straws and other messy things to play music, and some technical nerds specialize in shooting videos to teach people how to make smoke bombs or rotating machine guns...

Not to mention these foreign technical nerds, there are also some powerful domestic technical nerds, and that is the "Magic God Laboratory".In this post bar where some evil middle school students used to gather together, they didn’t chat all day long like ordinary post bars. The evil middle school students in the “Devil’s Laboratory” post every day to talk about how to make cloud bombs and gasoline bombs from daily necessities wait.

In this "Devil Lab" post bar, some middle school students posted a video of trying to explode a cloud bomb the size of a water bottle on the school playground. Gwartz's little animals are so weak!

Later, due to national security factors, the "Devil God Laboratory" was shut down, but the legend of these evil children still remained in the world.Like those teenagers who think about how to make a Tesla coil in the community, and then after electrification, the coil can penetrate the air and release a blue arc of several meters long and tens of thousands of volts towards the ground or metal objects to play with. In comparison, Cheng Jingyan felt that it was normal for him to know those things, and it could even be said that Cheng Jingyan was as reassuring as a kitten that didn't grow its claws well.

At least in his previous life, when he made Tesla coils or electromagnetic guns, the lethality was controlled to be relatively small...

After making these things, he found Harry, his twins, the Weasley twins and Nuiyada and each issued two for self-defense. After he demonstrated how to use them, the little animals were all frightened.

"Remember, don't use it unless you are in danger. This thing is quite lethal, so don't play with it, you know?" He seriously warned them, "If it weren't for so many things that happened in school, I wouldn't dare to give it to you." Keep all of your stuff a secret from me."

The little animals nodded obediently, and even the two most rowdy pairs of twins didn't dare to be careless.

"But the most important point is that you are not allowed to go to dangerous places!" He stared at the three youngest ones meaningfully, "I don't want you to encounter dangerous situations where you have to use this thing..."

The three children immediately nodded their heads quickly.

-------------------------------------------------- ------------------------------

The author has something to say:

Cheng otaku's lethality as a technical geek finally showed!Why did I set him up as a technical geek?For today!Isn’t there a saying that technical geeks save the world!By the way, the cloud bombs and magic horses in this chapter are all true, cough, real people often mix in the forum mentioned in that article... In fact, real people are also lethal!Theoretically... Bombs are awesome... Electromagnetic guns are amazing... The real person knows a little bit... When I was in the countryside, I used black powder to fry fish with my uncle. Cough, it's too cruel... …

Peace-loving girls must not learn from real people!The real person has already washed his hands in the golden basin, at most, he has been addicted to the forum...

26