After Transfiguration Class, Chen Yu prepared to go to the Hogwarts Library.

As soon as he went downstairs, Ron and Harry caught up with him.

Ron grumbled, "Hey, Chen Yu, you're so uncool. You didn't even wake us up for class!"

Chen Yu spread his hands and explained, "I woke up at six this morning. Are you sure you want to wake up with me at that time? By the way, how come Seamus and Neville weren't late? Why were you two late instead?"

Hearing Chen Yu's answer, Ron scratched his head sheepishly, "Do you usually wake up this early? Actually, we went to class with Seamus and Neville this morning, but who knew the broken staircase suddenly moved halfway through, separating us from Seamus and Neville. That's how we got lost, causing us to be late."

Seeing that Chen Yu was not going to the Great Hall.

Harry asked curiously, "Chen Yu, where are you going?"

Chen Yu answered honestly, "I'm going to the Library."

Ron elbowed Chen Yu's shoulder and advised, "What's so fun about the Library? Why don't we go to the Great Hall? Harry and I haven't had breakfast yet. After breakfast, we can play Wizard's Chess together. Wizard's Chess is really interesting!"

Chen Yu shook his head, "No, I already ate this morning, I'm not hungry now. Also, I don't know how to play Wizard's Chess, only Chinese Chess and Go..."

Hearing that Chen Yu was going to the Library, Hermione, who was holding a stack of books, immediately brightened up, pushed Ron aside, and said to Chen Yu, "Chen Yu, you're also going to the Library? I happen to want to go to the Library to look around. Shall we go together? I inquired yesterday, the Library is on the second floor of the castle! I've also memorized the route."

Looking at Hermione, whose eyes were shining, Chen Yu rubbed his nose and did not refuse.

In case there were moving staircases on the way to the Library, it would be good to have someone to help with directions.

After Chen Yu and Hermione walked far down the stairs, Harry and Ron looked at each other. After a long while, Ron finally reacted and said with an exaggerated tone, "Look, Chen Yu and Hermione are so compatible! One is first in Transfiguration Class, the other is second in Transfiguration Class, and both like to go to the Library. They're practically a match made in heaven. But with Hermione's personality, I guess only Chen Yu can put up with her. Besides Malfoy, she's the most arrogant person I've ever met!"

Harry tugged at Ron's sleeve, signaling him to keep his voice down. He wasn't very fond of speaking ill of people behind their backs, always feeling like he was doing something wrong.

The Hogwarts Library is located on the second floor of Hogwarts Castle, housing the most extensive and complete collection of magic books in the entire United Kingdom and even Europe.

"So many books!"

Both of them were shocked by the vast collection of books when they arrived at the Library.

Although they vaguely remembered that the Hogwarts Library in the movie had many books, they didn't expect there to be so many.

Rows upon rows of bookshelves were tightly packed together, each shelf holding thousands of magic books.

By estimation, there must be thousands of bookshelves, which means millions of magic books.

Chen Yu was a bit stunned.

He came to the Library to look for more advanced spells, such as the Shield Charm, Confundo, Full Body-Bind Curse, Healing spell, General Counter-spell, and Occlumency.

The Shield Charm is an excellent defensive spell. An invisible shield appears in the direction the caster's wand points, acting as a protective barrier between themselves and their opponent.

The Confundo is generally used to confuse or bewilder an opponent or to interfere with objects. When used on a person, it can make the cursed person obey the caster or act according to the caster's plan; when used on inanimate objects with a certain intelligence, it can also cause them to have similar perceptions, thereby confusing them.

The function of the Confundo is similar to the Imperio, but the Imperio can only control intelligent beings like humans. Although its power is much stronger than the Confundo, it cannot control soulless objects.

Victims of the Full Body-Bind Curse have their arms and legs pressed tightly together, their entire body becomes stiff, and they fall to the ground like a plank.

It is a very effective means of controlling an opponent.

The Healing spell, this is a healing spell that Chen Yu personally experienced and secretly praised in his heart. Once learned, even fatal injuries can be healed as long as there is sufficient magic power.

The General Counter-spell can stop the effects of most spells, such as the Leg-Locker Curse and the Dancing Feet spell.

Occlumency is also a spell that Chen Yu must learn. Without it, Chen Yu wouldn't dare to wander too much in front of Dumbledore.

The difficulty of learning these spells is at a medium-to-high level, but as long as he gets started, Chen Yu can use the system to level them up to a very high degree.

Moreover, these spells are not like the Three Unforgivable Curses; they are all spells that can be used normally.

With these spells, whether in The Magical World of Hogwarts or in the real world, Chen Yu's life safety would have basic guarantees.

As for Apparition, Chen Yu did not intend not to learn it, but rather to learn it after mastering the spells mentioned above.

Unlike the above spells, practicing Apparition is dangerous. A slight carelessness could result in one's body being cut into pieces by spatial forces.

It is best to practice under supervision or after learning the Healing spell.

Ever since he learned that items from the real world and the game world could be exchanged in his backpack, Chen Yu became more protective of his life.

Chen Yu could feel that his game character and real-world self had some mysterious connection.

His physical state in reality affected his character's state in the game, and after his character was healed in the game, his body in reality was also healed.

Conversely, if he died in the game, his real-world self might also die.

The Three Unforgivable Curses were trump cards, and ones to avoid using in front of ordinary people.

In this situation, Chen Yu still felt a sense of urgency, wanting to learn more life-saving and protective spells.

"Come on, let's go get a Library card first."

At the Hogwarts Library, students need a Library card to read books in the Library or borrow them for reading.

Unlike the crowded libraries in real-world universities, there were not many students in the Hogwarts Library.

Perhaps it was because it was just the beginning of the school year, Chen Yu's quick glance showed that there seemed to be only twenty or thirty people in the entire Library, and they all appeared to be older students. It seemed that only Chen Yu and Hermione were the younger students.

The librarian, Madam Irma Pince, was a thin witch.

She had an irritable temper, wore black wizard robes, and from her appearance, she somewhat resembled a malnourished vulture.

Hearing that Chen Yu and Hermione were there to apply for Library cards, she sternly warned them, "If you scratch, tear, fold, stain, damage, throw, drop, or in any other way damage, abuse, or desecrate this book, I will, within the limits of my power, make you suffer the most terrible consequences!"

"Furthermore, no eating anything in the Library, no loud noises in the Library, no dating in the Library, no casting spells in the Library, no sneaking into the Library at night, no secretly taking books out of the Library without permission, and no going into the Restricted Section unless you have a professor's signed approval!"

Madam Irma Pince's serious expression was not a joke. It seemed that if any student damaged, abused, or desecrated a book in any way, she would truly make that student suffer "the most terrible consequences" within the limits of her power.

Seeing that Chen Yu and Hermione both nodded obediently, she was satisfied. With a flick of her wand on two new Library cards, she handed them the two cards with their information registered and warned them again, "Don't let me catch you dating in the Library! I will throw you out of the Library!"

After the warning, Madam Pince's expression softened considerably, and she said in a calm voice, "Speak, for the sake of your love for learning, I can tell you where the magic books you want are located. But if you are not here to study, but to cause trouble or date, I will really throw you out!"

Chen Yu quickly reported the names of the spells he wanted to learn.

Madam Pince directly pointed Chen Yu in a direction: "All the spells you asked about are for older students, and their learning difficulty is medium to high. Being overly ambitious is not good for a wizard. If you insist, the books in that area are all related to spells. In the third row, fourth shelf, there is a book called 'Advanced spells' which should contain some of the spells you want. Additionally, I recommend 'Detailed Explanation of spell Principles'. After you finish your textbook 'Magical Theory' and then read 'Detailed Explanation of spell Principles', then go on to 'Advanced spells'. This can save you detours. Also, 'Defensive and Deterrent spells', 'Collection of Self-Defense spells', and 'Eighteenth-Century spell Selection' are all books you should read."

"From the spells you inquired about, it's clear you are a Little Wizards who pursues power. Are you planning to become a dueling master? Or do you feel insecure and crave the power of magic to protect yourself?"

Seeing that Chen Yu did not speak, Madam Pince continued, "As for Occlumency, that is a very obscure and highly difficult branch of magic. There are no magic books about this magic in the Library."

Chen Yu didn't know if Madam Pince was telling the truth or not, whether there really were no books on Occlumency, or if these books were placed in the Restricted Section and not allowed for Little Wizards to browse.

Never mind, since there weren't any, then he would secretly sneak over at night using the Serpent Spell and complete his daily night-time exploration mission at the same time.