The time in school is always comfortable and comfortable, not like working outside, like a clockwork puppet, running for a living all the time, Amosta didn't know much, two weeks passed in a flash, tomorrow, the first day of the second half of the semester.

Generally speaking, Hogwarts holds a Kick-Off Dinner to celebrate the start of the school year and the start of the new school year, except on the night before the school year starts.

At the beginning of the second half of the semester, there were no celebrations, but this year was different, because of the terrorist attacks that caused panic in the previous semester, Dumbledore unusually decided to hold a banquet in the Great Hall in the evening to encourage people.

Snape strode down the third-floor hallway, and the young wizard nearby quickly dodged to the side when he saw the cold-looking, menacing Potions professor, lest he avoid it.

Snape himself was accustomed to such a scene, and without glancing at the students, he quickly walked around a few corners and stopped in front of a classroom that was not used for many years.

"Please come in, Professor Snape."

Snape, who was about to knock on the door, was stunned by the sudden sound in the classroom, and he pushed the door in, only to see Amosta standing in the middle of the classroom with his arms folded over his chest, smiling at a wall.

"Headmaster Dumbledore, please invite me to dinner?"

Snape walked into the room and closed the door, sneering, "It seems that you, like our great Headmaster, are almost omniscient, Amosta?" ”

"I saw you coming out of Headmaster Dumbledore's office, and you didn't go anywhere, and you came straight to me, I guessed it."

Amosta raised his eyebrows and pointed to the wall, showing off the fruits of his labor with a smug expression

"Let's see how it works, Professor Snape, I've stayed up a few nights without sleep, running around the castle under the Transfiguration Charm, and finally finished debugging all the footage the day before school starts, and if I had to judge it myself, it worked very well!"

Snape ignored the boastful Amosta, he turned his head to look at the wall that had been divided into hundreds of small squares, each of which shimmered with the image, and after a few closer looks, he couldn't help but change his face slightly after the wind and waves.

Harry and Ron were seen coming out of the hospital to inform Hermione of the feast tonight and ask if she wanted to attend.

Crabbe and Goyle were standing in the owl hut waiting for Draco Malfoy, who had just entered, and after a while, Malfoy, with owl feathers on his head, came out, holding a letter in his left hand and throwing an owl onto the beam with his right hand, which caused Crabbe and Goyle to laugh, and Malfoy became proud.

In the fourth-floor corridor of the humpback witch statue, a dark, thin, curly boy was letting off wind on someone, and he whispered something to the statue, and then the witch's hunchback opened, and two identical-looking red-haired boys climbed out one after another, and they high-fived their friends merrily, showing off to him the butterbeer they had bought from the Three Broomsticks Bar.

Filch had just caught two young first-year wizards who were secretly throwing big eggs into the bathroom, and he grabbed them by the collar as he walked to the office, where Percy was scolding Sally Poxx for secretly using a leg lock spell on Padma Petill, causing him to fall into a puddle outside the bathroom on the second floor.

So, she was also taken to the office by Filch's collar.

Neville walked into Professor Sprout's office with the bubble branch given to him by Uncle Algie, and Professor McGonagall stood in the doorway of her office, watching a wizard in turquoise robes, blonde hair, and a big smile depart.

Snape was in front of Snape, who flickered at what was happening at Hogwarts, glaring at the people in the frame, watching them move around or talk, and finally, when he looked at the smiling Amosta, his face changed.

Indeed, on the night Amosta returned to school, he told himself what he was going to do.

But Snape had to admit that he didn't pay much attention to the whimsical solution that his protégé had come up with, and he didn't know it was so powerful until Hogwarts was so intuitively displayed in front of him.

"How did you do that?"

Snape subconsciously lowered his voice, and his eyes were even a little frightened, "I know you have a lot of gadgets in the castle... How do you avoid those things going undetected? ”

"It's easy," Amosta said with a relaxed expression, "I've cast a disillusionment charm on all of the panorama telescopes and some powerful spells to prevent destruction, and the little wizards won't be able to find out, even the professors, if they don't search for it." ”

It really can't be noticed, this thing is different from the wizard's peeping, it doesn't make people feel strange at all, Snape thinks he's a vigilant person, but along the way, he doesn't feel like he's being watched at all.

“… Actually, the principle of this thing is very simple, just like WWN (Wizard Radio Radio), it transmits signals through a magical magnetic field, except that my set of things transmits pictures, and radio transmits sound. ”

Amosta shrugged his shoulders, as if he had just boiled out a potion of potions for boils that even a first-year wizard could do, and there was no need to be too surprised, he explained to Professor Snape in a very casual tone,

"The biggest difficulty I encountered was that the magical magnetic field in Hogwarts was too chaotic and too powerful, which interfered with the stability of the signal transmission, so I spent an afternoon making some changes to the interference charms and adjusting the telescopes according to the strength of the magical magnetic fields in different locations in the castle... I'm tired of that, seriously, the next time I see Dumbledore, can you help me with some overtime pay? ”

"Speaking of Dumbledore--"

Snape's face was sallow and his expression was cloudy, "Does he know what you're up to, Amosta?" ”

Amosta didn't answer the question, as he saw Percy Weasley, with red hair with the Weasley family logo, walking suspiciously into the basement of the Ravenclaw Tower while on patrol.

He immediately went to the wall and searched carefully, and found the corresponding image in the corner of the wall near the window, in which Percy was hugging and kissing a beautiful girl with long brown curls.

"Tsk!"

Amosta exclaimed, "It's so convenient to be a prefect, if I had been a prefect back then, I wouldn't have to... Well, I forgot I don't have a girlfriend. ”

Amosta joked, then answered Professor Snape's question,

"Maybe you know, maybe you don't, I don't know, Professor Snape, when I came back, Mr. Headmaster's reaction was not quite what I expected, I thought he was going to keep an eye on me, but it turned out that he didn't pay much attention to me at all, do you know why?"