December was dominated by strong winds and blizzards. Compared to the vastness of the world, Hogwarts Castle looked like a small animal wearing a white felt hat in the snow.

For example, a Niffler.

A pair of Hogwarts students stood in the courtyard and chatted. "Come closer," Eleanor said, pulling out a locket from her thin pocket and examining it carefully. "I remember there was a button to adjust the range on the edge..."

The boy next to her hesitated and sat a little closer. Caldwell watched her fiddle with the knob on the locket.

"What is this?" he asked curiously.

"Thermostatic locket, sent to me by my mother." Eleanor explained as she lowered her head to study it. "It's ready!"

"What... Wow." Caldwell exclaimed, he felt a warm breath seeping in through his cold clothes little by little, a little uncomfortable at first, because the heat made him suddenly realize how cold his outer clothes were, but soon, he squinted his eyes comfortably.

It seemed like he had suddenly returned to summer.

"I was wondering why you didn't put on your thick woolen cloak. It turns out there's this... this thermostatic box!" said Caldwell, his face flushed from the heat, and he hastily loosened the thick scarf around his neck. "

It's a thermostatic locket," Eleanor repeated, and then showed him the locket. "It has two knobs on it, one for range and one for temperature. It's a new product from the Future World Company. Mom sent it to me immediately by owl."

"Future World?" Caldwell heard another unfamiliar word.

"Oh my! This is a very famous company recently. Their news is everywhere. The magic lantern show, the cooperation with the Weird Sisters, the branches in Diagon Alley and Hogsmeade... They also launched a list of products that will be released soon, more than a dozen items, I especially want the Emerald Crown."

Caldwell looked at her enviously, "You know so much, unlike me who knows nothing."

"Because my mother is a wizard, she graduated from Hufflepuff like me, and she told me the little secrets of the kitchen..." Eleanor said with squinting eyes. She has moon-white hair and a round face.

"So don't worry, just ask me if you don't understand." She said, patting her chest.

They sat on the bench in the courtyard, watching the men and women who walked leisurely on the weekend, pointing and commenting on everyone who passed by.

"Look, that person is a Slytherin, you can tell from the color of his scarf."

"Those two girls are holding magic puppets, which are props for the Ancient Magical Runes class. I guess they are going to find a secluded place to play."

"Ha, look at that person, does his clothes look like the little wizard Mick? Especially the way he scratches his head, so silly..." Eleanor giggled.

Caldwell listened carefully, then pointed to a person in the distance, "It's Professor Moody!"

The two fell silent, quietly watching Moody dragging one leg, approaching and leaving from a distance. They held their breath until he turned a corner, and the "crunching" sound of stepping on the snow finally disappeared.

"He's really scary, isn't he?" Eleanor said softly.

"Yes, you are right," Caldwell agreed. "You won't believe how terrible he was when he yelled at me on the day of the warrior selection. That broken nose was less than three inches away from me. Thanks to a young professor who saved me..."

"Don't say it." Eleanor immediately remembered the scene when she was scolded by Professor Moody when she was dyeing puff wool in class.

Under the effect of the constant temperature locket, the bitter cold wind turned into a refreshing spring breeze, which was cool and comfortable for Caldwell. He felt that Eleanor had set the temperature of the locket too high. The two of them were like sitting by the fire in the fireplace, and the snow around them unconsciously spread out in a circle.

"What is that?" Caldwell said suddenly, pointing to the snow in the courtyard, "There is something under it."

"I don't know." Eleanor said, she took out her wand from her pocket and looked at the snow vigilantly. Caldwell followed suit, but they were all first-year freshmen and had not learned many useful spells.

"It must be a living thing!" Caldwell said. They lifted their legs and placed them on the edge of the chair, watching carefully as something in the snow dragged a long trail and then stopped not far from them.

Just as Caldwell began to wonder if a big mouth full of fangs would suddenly appear, a small bulge appeared in the snow. "It's coming out!" Eleanor said nervously, holding Caldwell's arm tightly with one hand.

"Don't, don't worry, it doesn't look big... I should be able to handle it... Huh?"

He was about to cheer for Eleanor when a pink beak poked out, followed by a furry head.

"Chi!"

Sniff Valen raised his head and looked around against a layer of snow. He paused on Eleanor and Caldwell, looked in the direction of the courtyard exit, and then his body went into the snow again.

"What is that... It doesn't look that scary." Caldwell said, he couldn't help blushing, maybe Eleanor was too close and the locket was too hot.

"A Niffler." Eleanor said, "I heard from the prefect that a professor in the school has a Niffler... Oh, no."

"What happened?"

"We missed an opportunity! The prefect said that this Niffler has a lot of treasures. No one knows what good things are hidden in its pockets, but as long as it likes something, it will take out the treasure and exchange it with you!"

"What can a Niffler have, a beautiful stone?" Caldwell asked. This was the only thing he could think of.

"More than that, I heard that a pair of twins gave this Niffler a box of Filippo fireworks, and in return they got a feather pen that can draw in the air, and the characters drawn can move... Another student gave it a glowing grass and in return it got a bottle of blue bubble water."

"Bubble water?"

"Bubbles that can put people in!"

Caldwell imagined the scene of Eleanor being put in a blue bubble, and he found that he was looking forward to it very much. But the Niffler had already left, and he could only stare at the traces left by the Niffler on the snow.

...

Sniff Valen was enjoying a rare vacation. He had made an agreement with the Great Devil that every time he learned a hundred words, he could go out for a walk without anyone watching.

He came out of the courtyard and walked a distance. He poked his head out again. He smelled a dozen familiar smells, picked one of them, and moved quickly. Occasionally, he looked up and heard some conversations that he didn't quite understand.

"I'm only telling you this, because you're my sister... Professor Trelawney predicted that something bad will happen!"

"Really?" said a voice with little interest, "Who will die this time?"

"Padma Patil!" The person who spoke before didn't sound very happy, "You should learn to respect professors."

"Sorry, Ravenclaw only respects people who are truly knowledgeable."

Sniff Varun poked his head out of the snow and saw a pair of twin sisters who looked very similar and were on the verge of a fight. He hesitated and walked back.

"Look, it's the Sniff! Don't go, I want to exchange things with you!" One of the witches ran towards him excitedly, and Varun was startled, and quickly got into the snow and ran away.

This time he was much more cautious. When he heard someone talking, he would deliberately slow down his pace. Soon, he smelled a familiar voice, no, three.

"The people of Uagadou don't live in snow houses, do they?"

"Fred, you are insulting my African friends. They have their own base... The environment is indeed not good, but it is definitely better than Durmstrang. The poor ghost ship is swaying in the strong wind..." said a voice that spoke quickly, and did not sound very angry.

"Have you really made friends with them?" Fred asked in surprise.

"Look at my braids, brother, tonight we are all bronze eagles!" Lee Jordan shouted the slogan for free.

"Oh, Lee, the students of Ravenclaw will be unhappy to hear this..." George said with a smile.

Sniff passed by quickly like a black shadow, and found his target before entering the main building of the castle.

"That's definitely a terrible idea." Ron said.

"I don't think so." Hermione said calmly.

"Don't you think it's outrageous? We squatted outside the Ilvermorny camp for two hours just to talk to those goblins... I was almost scared to death when they pointed arrows at me."

Harry said nothing. He wanted to sleep in on the weekend, but Hermione insisted on dragging them to interview the goblins and ask them about their lives in Ilvermorny, saying that they wanted to compare them with the house-elves in Hogwarts.

As a result, the goblins drove them away rudely. As for his feelings... He was numb from head to toe now. He just wanted to go back and take a hot bath as soon as possible and didn't want to talk at all.

At this time, a black shadow rushed out in front of him. He subconsciously drew out his wand, but stopped the moment he saw the black shadow clearly. "Valen?" He shouted in surprise.

Sniff climbed up his shoulder to his head and looked down at Ron and Hermione arguing.

"Chi Chi (keep on)!"