The chilly autumn winds are blowing from the east, which means that October is coming to an end and Halloween is just around the corner.

These days, Calvin has given up almost all his studies of magical beasts, switched to architecture, and spent his days writing and drawing on Hogwarts maps, restoring almost the entire structure of the castle.

"Hey!" He threw the pen and paper on the table, leaned back, and sighed.

Basida was disturbed by Calvin's noise and glanced back at Calvin with a sad face, "What's wrong?" ”

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"I'm a little strange, where the hell is that snake hiding?" Calvin said.

Last time, he asked Dumbledore to borrow headmistress privileges to investigate the strange sounds Harry had heard.

Dumbledore said that the Headmaster's authority could not be loaned, but he cooperated with him in his careful investigation.

Calvin found water pipes near several places where Harry heard the sound, and in each of them, he found signs of snakes crawling.

According to Calvin's speculation, the snake was not small, and if it was still in school, it should not be difficult to find.

However, Calvin and his clone searched for a week in the water pipes all over Hogwarts, but they couldn't find the snake's hiding place, and they ended up with a stench.

Bassida frowned, "You're not going to go into the sewers again, are you?" Don't go, it stinks. ”

Calvin hesitated, thinking as if there was nothing else to hear but Harry could hear, or not?

"It's almost Halloween, you go get two pumpkins and come back, right from that bearded friend of yours." Bascinda wanted to divert Calvin's attention from the sewers.

Calvin looked at the manuscript paper and models all around, and there was really no festive atmosphere at all, so he smiled and agreed to Bascinda's request.

Calvin soon arrives at Hagrid's cabin, where he unexpectedly meets three acquaintances.

"Good afternoon, Hagrid, and the little wizards." Calvin greeted him warmly, and then he noticed that the three of them didn't seem to be in a good mood.

Hagrid smiled and served Calvin hot tea and sandwiches.

"Kids, you don't seem to be happy?" Calvin asked slowly, "You can't still worry about the old snake." ”

"Ha, the snake is a dark wizard, it's ridiculous!" Hagrid also knew about this, and comforted Harry in a different way, "Can I still communicate with spiders?" ”

Ron shuddered when he heard the word spider.

"No, no," Harry explained, "I promised Nick, who was almost headless, to attend his 500th anniversary on Halloween, and brought Ron and Hermione with me. ”

Ron and Hermione smiled bitterly from the side.

Calvin and Hagrid looked at each other and couldn't help but laugh.

"Harry, how did you promise Nick?" Calvin couldn't help but laugh, "Do you know what those ghosts eat at their celebrations?" ”

"Rotten food," Harry buried his head in, "I was in a bad mood for a few days, and everyone avoided me, so when Nick came to look for me, I didn't even think about it. ”

"Don't worry too much about Harry," Calvin said, "Aside from the unpalatable food, the ghost's death celebration is still very interesting, and you can hear a lot of interesting secrets, or gossip. ”

After taking the two pumpkins from Hagrid, Calvin returned to the castle. Now the auditorium is lively and full of festive atmosphere. Despite the cold wind outside the castle and the clouds covering the sky, Hogwarts was bright and cheerful.

Professor McGonagall shapes up giant bats to decorate the auditorium; Professor Flitwick converted the faculty chair into a makeshift stage, and Dumbledore is said to have invited a skeleton dance troupe to perform.

Hagrid's pumpkins with the Expansion Charm were carved into openwork lanterns, enough to seat five young wizards.

"It looks like it's getting closer, I don't know if I can take a vacation."

Suddenly, someone said behind Calvin.

Calvin glanced back, it was Pierce Hinkenis. This is the third time he has been seen in the castle since the beginning of the school two months.

"What a coincidence to meet on Halloween's Eve, Pierce," Calvin said quietly, "why are you at Hogwarts again?" ”

"Come and deliver a letter for Minister Fudge," Pierce smiled awkwardly, "the people from the Magical Congress of America are finally here, and they want to meet Headmaster Dumbledore, on Halloween." ”

Calvin frowned slightly, "Hasn't the person who specializes in attacking owls caught it yet?" ”

"No," Pierce shook his head, "I really don't know what Anderson is up to." ”

Calvin thought it was a little odd, but he didn't say anything.

A few days later, in the evening, the Halloween party finally began.

Calvin also brought Bascida to the Great Hall to show her the colorful candles and pumpkin lanterns the size of a horse-drawn carriage made by Flitwick.

Harry and his two friends, on the other hand, ran against the crowd through the cold hallway to the basement covered in black candles.

Nick, who was almost headless, wore a black velvet robe and stood at the door to greet them warmly:

"Welcome, my dear friend, I'm so glad you guys to come......"

Harry looked at the gloomy basement with a wry smile on his face, and he remembered that when he was leaving, he saw Qiu Zhang in the auditorium, chatting with a tall, handsome wizard. If you don't come, can you have a few words with Qiu Zhang?

Harry, Ron, and Hermione looked at each other, and in the dim candlelight, the three of them walked in together, looking at death.

At the same time, in the lively and warm Great Hall, Professor McGonagall announced the official start of Halloween in place of Headmaster Dumbledore, and the cheers of the young wizards almost tore off the ceiling of the Great Hall.

Calvin wasn't interested in the Skull Dance Troupe or cosplay, and just sat in his seat and quietly savored dessert.

"How come I didn't find you so boring before!" After being rejected several times for Calvin to dance, Basida complained.

Calvin didn't explain much, he just didn't want to dance with that fool.

Bascida also tries to pull Calvin by the sleeve and drag him onto the dance floor, only to be gagged by Calvin with a piece of Black Forest velvet cake that looks like the Forbidden Forest.

"Take a good rest, you're tired from studying magic all day." Calvin said as he pulled out a hot communication crystal from his pocket.

"Kaka! Dark Marks have appeared in Manchester, someone is injured, come and help! ”

The letter was Sirius.

Calvin's expression was instantly serious.

Voldemort, you finally can't hold back your loneliness and decide to come back and make trouble?

"You can go back by yourself in a moment, I have something to do tonight." Calvin shook off a word, and hurried out of the Great Hall, leaving Hogwarts.