McGonagall's Office

Albert looked at the wooden door that was almost torn down, his eyes twitching.

"Merlin's beard, what do you do now."

The three Weasleys looked at the broken wooden door, swallowed their saliva, and couldn't help taking a step back. They didn't realize what happened just now.

"Are we..." Fred raised his hand and made a quick gesture. It would be no good if he was caught accidentally.

"Don't be stupid, powerful wizards usually use tracking manifestation magic to know who has been here recently." Albert reached out and held Fred's shoulder, reminding him not to slip away.

"Then what shall we do?" George looked at Albert anxiously.

"I should be able to repair it. I remember the spell that should repair it to what it was before." Albert quickly calmed down, raised his wand and aimed it at the torn wooden door, and concentrated on chanting the repair spell.

The planks were torn off the hinges and flew back to the door. The cracks slowly healed, and they would soon be restored.

However, before the wooden door was completely restored, the door suddenly opened from the inside.

The four people froze in place, because Professor McGonagall walked out from behind the door, looked at the wooden door that was slowly being repaired, and looked at the four people standing in front of her. The surrounding atmosphere suddenly became a bit awkward.

"What the hell are you doing?" Professor McGonagall's face twitched and stared at the four of them sternly. Just now, she heard movement from the secret door of the office. When she came to check, she found that the door of her office had been demolished?

This scene stunned her immediately.

"Sorry, Professor, we didn't know that Open Sesame was a spell." Albert immediately apologized and admitted his mistake, "I think it was just a... accident."

"Needless to say, Mr Anderson, come in, along with the rest of you." Professor McGonagall looked at the four with a blank face and let them enter her office.

"It was just an accident, Professor," Albert repeated softly. The twins behind him and Lee Jordan both held their breath, nervously unable to speak.

"Very good repair spell. But, Mr. Anderson, I have to remind you that Open Sesame had been an unlocking spell hundreds of years ago, and nowadays wizards don't use this kind of rough magic." Professor McGonagall looked at Albert. "If you read modern textbooks, you will find that our generation of wizards prefers 'Alohomora'."

"I know. However, the Alohomora charm did not work for this door."

"Because the door was enchanted to not unlock to a simple Alohomora." Professor McGonagall explained, "So your spell did not work. I think Professor Flitwick will be very happy that you ask him these questions. "

"I will Professor."

"Don't repeat this, gentlemen, otherwise you will serve detention." Professor McGonagall didn't seem to be going to blame a few people. She turned around and fetched a piece of parchment from the table, handed it to Albert and said, "This is the first-year schedule, help me post it on the Gryffindor bulletin board."

"There won't be another time, I promise." Albert gave a light cough, took the first year schedule that Professor McGonagall handed over, quickly pushed the twins and Lee on their backs, and walked out of Professor McGonagall's office quickly.

"That scared me to death." When they were far away from Professor McGonagall's office, everyone dared to speak.

"We opened the door of Professor McGonagall's office?" Lee still couldn't believe it.

"We're in luck, no points were deducted, and we didn't get detention." Albert opened the timetable given by Professor McGonagall and took a look. The first class on Monday was actually Charms.

"But, great Albert, your Open Sesame spell actually opened the door." Fred's eyes sparkled with excitement.

"This was just an accident. I didn't know it was a spell." Albert took his wand and tapped the parchment. The original schedule was copied into two.

Two was copied into four.

He divided the timetable among the four people.

"Unexpectedly, there will be no flying lessons until Thursday afternoon." George was a little disappointed after reading the course schedule. He was looking forward to flying in the sky on a broomstick.

"Don't you think the number of courses is a bit small?" Albert frowned after watching a week of courses. Hogwarts felt more like stocking teaching.

"The lessons are a bit short, are you crazy?" Lee looked at Albert in disbelief, as if he had been cast by some strange curse.

"In a Muggle school, there are at least double the classes." Albert thought about it and guessed the reason.

There were only a few professors in the school. If there were two periods a week per year, a professor needed to teach 24 periods (the four houses(2 at a time) in grades 6 and 7 go together).

Saturdays and Sundays were holidays.

Thinking about it now, it was not incomprehensible.

"What are you thinking about?" George asked.

"Nothing, let's go. We should continue looking for the classrooms." Albert stuffed the class schedule in his pocket and took the lead to walk towards the marble stairs.

The four of them had found the Transfiguration Classroom, the History of Magic Classroom, and the abandoned bathroom on the second floor of the castle. He still remembered that there was the entrance to the Slytherin Chamber, and there was a dangerous basilisk inside.

Since it was a girl's bathroom, the four of them just passed by and did not intend to go in, so as not to be misunderstood.

The exploration of the castle was quite rewarding. Near the corridor of the magic classroom on the fourth floor, the four people found a secret passage behind the tapestry. The exit of this secret passage was in the armour corridor and near the trophy showroom.

"I think all the Hogwarts tapestries hide a secret passage." Lee Jordan said jokingly when he walked out of the secret passage.

No way, the secret passage they found today just happened to be hidden behind the tapestry. Such a misunderstanding was not surprising though.

"I dare say that most people can find these secret passaged." George was a little disappointed. He hoped to find more hidden secret passages that no one else knew about.

"We will find more. Let's go in and have a look at the trophy room." Albert proposed. He was a little curious whether these medals and trophies were made of gold and silver.

"George, Fred." Lee Jordan pointed to a cabinet and said, "Look at this, your eldest brother Charlie used to be a Quidditch captain and won the Quidditch trophy for the academy."

"Yes. However, he has only won the championship once." George looked at all of the Slytherin trophies and were a little depressed. Gryffindor and Slytherin always had a rivalry, and Gryffindor was not in the lead.

"The people in Slytherin sometimes do whatever they can to accomplish tasks," Fred muttered. He added, "Percy told me."

"Yes, those guys in Slytherin are the most annoying." George echoed. "Percy said that once Slytherin fell out of the first place by a bit, they would do whatever it takes to defame the new first place. Snape would favour his students and never give them any points. Many students in the school don't like him and always call him the greasy old bat."

Albert suddenly twitched when he heard the twins' words.

Although it's a joke, don't throw all the blame on Percy's head. He is your elder brother, not some random man.