Open Sesame

"I think so too." Albert couldn't help but smile, squinting to catch a glimpse of the passing ghost. He raised his hand to say hello to the other party. "Good morning, Sir Nicholas."

"Good morning boy, what's the matter?"

"Are you free to take a picture, Sir Nicholas?" Albert asked, raising the camera.

"Oh, okay!" Nick thought for a while and asked, "Do you need a pose?"

"No, come on, look here." Albert adjusted an angle and clicked the picture.

"Is it all right?"

"Okay, thank you, Sir Nicholas."

"You're welcome, then I'll go!" The ghost floated away quickly.

Angelina leaned over, wanting to see what Albert had taken, there was nothing in the picture.

"It seems that the Muggle camera can't capture ghosts. Maybe it can be done with the wizard's camera." Albert wrote - Sir Nicholas de Mimsy-Porpington on the back of the photo.

"Wow! You remembered his name." Angelina admired Albert's memory, at least she couldn't remember this string of names herself.

"It's not the camera's problem." A voice sounded.

Albert turned his head and saw a beautiful red-haired girl who had just walked into the auditorium. She noticed that several people were looking at her and explained, "After taking the photo, it needs the correct developing potion, and then the people inside can move. Also, ghosts are spirits, and they will not be photographed by the camera."

After speaking, the girl walked to Ravenclaw's table.

"Wow, no wonder she's a Ravenclaw student, they know so much." George exaggerated.

"They are very knowledgable." Albert sighed and extended an invitation to Angelina, "Do you want to go exploring with us to other places in the school after you finish eating?"

"No." Angelina hesitated, but refused, "I have an appointment with others."

"That's a pity." Albert picked up a piece of fruit and gnawed at it, thinking about how to get the potion suggested by the girl.

The number of students in the auditorium had gradually increased. Most of them were first years. Perhaps because of the weekend, the upper-grade students slept late, but the first years couldn't wait to explore the castle.

After bidding farewell to Angelina, the four of them walked out of the Great hall. When passing through the hall, they all noticed that Filch was holding the cat and staring at them.

Albert stopped and found that his panel had a new task.

[Caretaker]

[You have been targeted by the caretaker Filch at Hogwarts. It is time to fight back. During the night tour, get rid of Filch, the caretaker, so that he can understand that even if he focuses on you, he cannot catch you.]

[Reward: 1000 experience]

After going through the task, Albert's mouth couldn't help but twitch. He found that after coming to Hogwarts, triggering the panel mission seemed a bit trivial.

"What's the matter?" Fred asked, looking back suspiciously.

"Nothing." Albert took a few quick steps to follow the team. When the four of them crossed the damp viaduct, he suddenly asked, "Do you know the disillusion spell?"

"What's that?" George asked suspiciously.

"It is said to be a kind of invisibility magic." Albert explained, "I have read in a book, this kind of invisibility spell can make the disguised person or thing become like a chameleon."

"Sounds cool," George said. "If you can master it, you don't need to worry about being caught when you wake up at night for a night tour."

"I think so too, at least you don't need to worry about Filch." Albert nodded his head, he was ready to master the disillusioning charm and then explore at night.

"But how do we get the spell?" Fred was a little depressed. "Dad may know, but he certainly won't tell us."

"How about asking the professor?" Lee proposed.

"For the time being, we can only look for it in the library." Albert said, "Of course, if we can't find it, we can ask the Charms Professor, but I am a little doubtful whether he will be willing to teach us this spell. After all, he might think that we will use it for wandering past curfew."

The people looked at each other and sighed helplessly. If they could master this magic, it would be much easier to do many things in the future.

Albert stopped by the viaduct, draped his hands on the railing and looked down. He still remembers that at the end of the novel, Harry Potter broke the old wand and threw it off the bridge.

That prodigal son.

The old magic wand was a good thing, even if he didn't need it, he could hide it somewhere unknown.

That was one of the important artefacts in Harry Potter's novels, and the other was the Philosopher's Stone, and both good things were destroyed.

"Anyway, find the library before talking."

"Even if we find it, we probably won't learn it for the time being?" Lee said. He was a little discouraged, he didn't forget that he didn't even master the simplest magic.

"Don't say such discouraging words." Albert cast a glance at Lee. "How do you think I master other magic."

"How was it done?" the twins asked curiously.

"Of course you have to spend a lot of time practising, or do you expect to learn it quickly?" Albert said grimly.

The four of them walked and talked about the disillusioning charm. After strolling on the first floor of the castle for a long time, they found a few empty classrooms with piles of debris, and a place that seemed to be a secret tunnel, but none of them could open the secret tunnel. The four of them were very depressed.

"Most secret passages require a specific password or a special action to open." Albert explained to the three as he walked, "If you want to find it, you can only try your luck, or ask other people. But I dare say that the old students won't tell us easily."

"Transfiguration classroom." George reminded, "I remember Professor McGonagall teaches transfiguration."

Lee whispered: "I heard that this subject is extremely difficult to learn."

"It's really difficult." Albert discovered this when he was studying on his own. It took him the most time to turn a match into a needle, but after learning it, most of the transfiguration techniques were actually not that difficult.

Of course, it may also be related to his panel skills.

The four people found the magic history classroom on the second floor of the castle. Fortunately, the classrooms were marked, otherwise, they wouldn't know where to look.

"There is a wooden door here, I think it should be a secret passage." Lee excitedly pointed to the entrance hidden behind a stone statue.

"It seems to be locked." Albert drew out his wand and opened the wooden door in front of him with an Alohomora.

"Your spell has failed." Fred reached out and twisted, but still could not open it.

"I guess a password is needed to open it," Albert muttered.

"What do you think the password is ?" Lee asked rhetorically.

"How would I know." Albert gave Lee a blank glance, then thought about it, and said, "The most famous secret password in the Muggle world is Open Sesame. This story comes from Alibaba and the Forty Thieves."

Having said that, Albert's wand happened to knock on the wooden door.

The next moment, the wooden board on the door was torn off the hinge.

The four of them couldn't help but grow their mouths, their eyes almost protruding from their sockets, and they didn't realize what happened just then.