Hogwarts doesn't celebrate Valentine's Day, at least the professors don't mention it much, and the homework assigned yesterday Friday will not be reduced by a single point. But for the little wizards, this is a very important festival.

"Think about it, there is only one day a year, girls put on beautiful clothes, and wait for others' invitations with affection..."

Early in the morning, Harry walked out of the dormitory listlessly and saw the Weasley twins and a tall boy with freckles on their faces selling couple mirrors.

"...We have two styles now. If you think the heart shape is passionate and not suitable for you, you can try the rectangular one. We can match it with some small cupid decorations."

"But...I don't have anyone to give it to." The freckled boy said hesitantly.

"Opportunity waits for no one! Buy our products, then go back and change into a formal suit, and send out invitations in the morning-" Fred said in a tempting tone.

George performed on the side. He put his right hand on his chest and bowed affectionately, "Madam, can I invite you to take a walk together?"

The boy happily bought their products.

Harry gave the twins a thumbs up, and the twins responded with a bright smile.

"Will anyone buy it?"

"Valentine's Day represents sweet love, just like bamboo shoots popping up suddenly after rain. Even people who didn't intend to buy it can't help but be tempted..."

Harry walked over to Hermione and was happy to see that she was no different from usual. She was grading a thick stack of papers. He glanced at them and found out with a guilty conscience that they were the ancient magic papers for the third grade. The corrected papers had a different kind of appeal. The first one was Dean's, with six mistakes circled on it. Harry secretly guessed how many red circles would be on his paper.

He reached out to flip it over, and Hermione slapped his hand, "Don't mess it up. This is the result of my morning's work."

Not long after, Ron came out, one of his trouser legs tangled in his socks. When Harry pointed this out, he yawned and fiddled with his trouser legs.

"Are there any activities?" he asked.

"We made an appointment with Neville and the others to go to the Black Lake to read books. Remember, this is one of the few things we can do." Harry said. Professor McGonagall seemed to want to lock him up in the castle to rot, but after he argued, some places outside the castle were reluctantly opened to him.

For example, the Black Lake is a good place. It is backed by the castle and has a panoramic view of the surroundings. Black would only appear in this place if he was upset.

"It's just right," Ron cheered up: "I can try the new imprisonment spell I learned. The duel competition is about to start, and I don't want to be eliminated in the first round."

Because of the large number of applicants, the duel competition has been moved to the second day of the weekend, which will start at 10 am tomorrow and will last all day.

Harry said matter-of-factly: "You are quite good in the duel team." At least, Ron is the third person to learn this spell after him and Hermione, although the price he paid is a bit high.

The small jar of ointment for healing bruises that he asked from Madam Pomfrey has run out.

Ron's interest was obviously high. For a while, he began to talk about his experience of learning this spell: "Like Professor Hep said, you must understand this spell. How to understand it? I personally think that you have to experience the feeling that magic brings to you..."

Ginny and Neville came out soon. At this time, Hermione also quickly corrected the last test paper. She glanced at the time: "Let's go."

Coming out of the lounge, they were surprised to find that there were already some people in the corridor. Couples were walking around holding hands generously. And near every boy and girl with tangled eyes, there was a person they liked in his (her) sight.

They passed by a group of second-year girls, and the wind blew their conversation over, "What do you think... Professor... my card?"

"What are they thinking about?" Ron said incredulously.

Hermione understood very well: "Maybe they just want to send a holiday blessing..."

They waited at the gate of the castle for a few minutes, and Luna appeared hopping, she took Ginny's hand, "It's right to walk out of the castle, so that we can avoid the nymph hooks in the mistletoe."

"Hook... what?" Ron asked.

"The gnat hook, it makes people flustered and confused..."

"That explains why witches like to kiss under the mistletoe." Ron said teasingly. Harry wanted to laugh, but Ginny and Hermione stared at him.

Little wizards sat in groups of three or four on the grass and under the shade of trees by the Black Lake. They chose an open space and enjoyed a leisurely time. When the third girl handed Harry a card with the encouragement of her friends, Ron said sourly: "Why don't you accept their invitation?"

Harry's face was a little hot, and he stammered: "I, uh... because..."

Luna said happily: "Do you have someone you like?"

As soon as the voice fell, Ron and Ginny immediately stared at Harry's face, as if they wanted to see a flower. Harry shouted angrily: "No-"

Luna stared at him with a surprised expression.

"You scared her." Hermione said sternly. Ron defended Harry and said, "Luna is always like this, isn't she?"

Luna said in a trance, "I don't think she was talking about me." She pointed to a weeping willow by the lake in the distance, and everyone looked in the direction of her finger.

Ron squinted his eyes: "It seems to be a boy." He looked at Harry meaningfully.

Harry said embarrassedly: "Maybe it's because of my shouting just now... just, just..."

However, after more than ten minutes, the boy was still staring at this side, and even Harry felt it, and he was uncomfortable all over.

Hermione stood up, "Why don't we ask him, maybe he has something important." She walked to the willow tree and talked silently, pointing at Harry in the middle.

After a while, Hermione came back and looked at them in confusion: "He won't say a word."

Ron laughed, "Harry has to do it."

Harry got up from the grass and shrugged, "It's definitely not what you think. Wait, I guess he might be asking about the duel study group?"

He walked over and almost saw the boy's appearance. He should be a first-year student, wearing a loose old robe with the edges of the fabric flying.

All this reminded him of Ron. Harry smiled and wondered if this boy was really his admirer, how should he make his tone both tactful and firm? Colin Creevey was enough to give him a headache.

Sixty feet, fifty feet, the boy opposite also looked at Harry in surprise, and opened his mouth to say something.

"Buzz~Buzz~"

Harry's pocket began to vibrate, and then a sharp buzzing sound suddenly sounded, so loud that it could be heard by half of the Black Lake.

Harry's smile froze, and time seemed to slow down. He could see every change in the boy's expression on his face, and even wanted to guess whether he was the same.

But the next second, he realized a fact-the spyglass! The spyglass rang!

"It's Sirius Black, run!" Harry shouted loudly, he quickly leaned to the side, stretched out his hand to draw out the wand, and a red light flew out in the blink of an eye.

But the spell missed the willow tree, and the boy, no, Sirius Black also drew out a wand, blocked the oncoming thick rope, and turned and ran.

Harry chased after him without thinking, the sharp buzzing sound made him unable to hear the surrounding sounds, his heartbeat accelerated, and he chased after Black.

"Harry, don't take the risk!"

Percy hugged him in panic, with one hand still holding the peanut candy. Harry struggled hard, "Let go - let me - catch - him -"

His eyes kept staring at Black as he went away. The students around him looked at it blankly. Ron, Hermione, Neville and Ginny ran over, "Harry, oh - that's it, that's it?" Hermione shouted breathlessly, trying to drown out the buzzing sound.

"It's Sirius Black!" Harry didn't hear it clearly at all, he shouted loudly.

Neville asked in a daze: "What are you talking about?"

"Swoosh!"

Everyone saw Professor Hepple falling from the sky, the Nimbus broom flashed away, his wand pointed at Harry, and the buzzing sound disappeared.

"Professor - Sirius Black, he's coming!"

"Disguised as a student, it's Polyjuice Potion -"

"He still has a wand in his hand!"

Felix said calmly: "Which direction did he run?"

Harry hurriedly pointed in a direction. He suddenly realized that it was impossible to Apparate near Hogwarts. Hermione told him that, which means there is still a chance!