After the two sat down, Fred pushed two bottles of butterbeer in front of them and asked curiously, "How much did you buy and why did you take so long?"

"If it had been a little later, we would have gone to look for you two."

"We didn't buy much," Cedric said, "but when we came out, we found a very interesting big black dog, which delayed us for some time."

“Black dog…” George frowned and whispered, “Could it be, unknown?”

"It's probably just a stray dog ​​outside that accidentally ran here." Cedric said, "It could also be brought by a customer of the Hog's Head Bar. Davis's is right next to the bar."

"That should be the case." Fred nodded and said, "There are all kinds of people in there. George and I saw someone hide a five-foot-long bone in his robe last time."

"We think it might be a troll..."

"That smell is so disgusting..."

Fred put down the cup in his hand. "We always wanted to go in and take a look, but after that time we gave up the idea for the time being."

"Because of the giant monster bone?" Qiu asked.

"No, because we were kicked out by the bar owner." George shrugged. "The old guy has a terrible temper..."

Several people chatted and drank butterbeer.

When Kyle passed by Davis' store again, the black dog was gone, and it did not appear again until the end of the visiting day.

When the allotted time was up, everyone followed Professor McGonagall back to the castle.

Kyle didn't even go back to the common room, but ran directly to the Room of Requirement on the eighth floor, and the others followed him.

Cedric mentioned the Misty Gem before, and everyone was curious.

Coincidentally, Kyle was also planning to test its effects, so they simply followed along.

"I need a big, windy room."

Kyle walked back and forth in the corridor three times, and a door appeared.

As soon as they walked in, they were blown to and fro by a strong wind.

Kanna was almost blown away, but fortunately Kyle pulled her in time.

"The wind here is too strong...you should have spoken more clearly..." Fred shouted at the top of his voice.

Only in this way can his voice be heard.

"Since we're here... let's just leave it at that... and it would be better if the wind was a little stronger..."

Kyle had no intention of moving forward, so he reached into his pocket, took out a mist gem and crushed it.

The fragments began to decompose and turned into large patches of thick fog in the air, filling the surroundings.

In just a few seconds, they found themselves in a hazy white world.

The howling wind disappeared, as if blocked outside by the thick fog.

Fred rubbed his eyes and found that he could only see George, who was closest to him, and a little shadow of Cedric.

"It's worth twenty Galleons..." George's voice came from my ear, "Kyle, where are you?"

"Here." Kyle and Connor walked over, followed by Qiu and Cedric.

"It's amazing..." Cedric exclaimed, "The wind that almost blew me away was actually blocked by this fog..."

"You get what you pay for." Fred said with a smile, "This is twenty Galleons... If a little wind can blow it away, then Kyle can go to Davis to return it."

"I'll try again." Kyle took out his wand.

"Whirlwind Sweep!"

"Clear water like a spring!"

"The flames are blazing!"

…

Kyle kept changing various spells, but the thick fog around him did not change at all. Even if it did, it would quickly return to its original state, and visibility remained at less than one meter.

George also tried a few spells and asked curiously, "Kyle, how big do you think this area is?"

"How about we test it?" Fred said.

His idea was also agreed by everyone.

Without hesitation, since he had nothing to do anyway, Kyle used his wand to conjure a long rope and tied it to the door handle. Then he walked forward along the lines on the floor with everyone else.

Half an hour later, they stopped in front of a wall.

"The end?"

Kyle felt the wall and changed direction again.

But this time it was faster, they stopped again in just over ten minutes.

Kyle discovered with some embarrassment that he seemed to have underestimated the extent of the thick fog.

He just asked for a very big room, but a room, no matter how big it is, has an end.

“I should have said something bigger, like a forest or something…” Kyle patted his head.

There was no choice but to start walking back along the rope.

"Now at least we can be sure that the range of the Mist Gem is indeed not small."

Fred said, "Although we are walking slowly, we should be able to pass through at least five Quidditch pitches in half an hour."

"Eight..." Cedric said, "I'm sure of it."

George smiled and said, "What do you think would happen if we threw one onto the field during a Quidditch game?"

"That will be interesting." Fred also laughed. "No one can be seen, and no goal can be seen. They will find themselves in Hogsmeade as they fly."

"Maybe you can go to Honeydukes and look for it. Maybe you can find a raspberry-flavored Snitch."

"Kyle, you can really give it a try..."

After saying that, the two laughed even louder.

"I don't know if Honeydukes has a Golden Snitch, but I know I'll lose twenty Galleons."

Kyle looked back at them, "And maybe even get detention from Professor McGonagall."

“That’s true…”

Fred sighed, "Detention is fine, but twenty Galleons is really too expensive."

He stretched out his hand, as if wanting to touch the thick fog.

They returned to the door and waited for a while... suddenly a breeze blew on them.

After that, the wind grew stronger and stronger, and the thick fog began to dissipate gradually.

"It should be about the same."

After their robes were blown up, Kyle opened the door and walked out.

"Exactly two hours." Kanna looked at the time.

"Two hours, twenty Galleons...this prop is too luxurious." Fred smacked his lips.

"I feel a little sad every time I think about it now," George said. "Twenty Galleons can buy ten large boxes of rotten eggs, which are more than enough to last a whole school year."

"Ten cartons of rotten eggs a year?" said Fred dramatically. "I guarantee Filch will kill us if we use that many."

"Then use two school years..."

"Wait!" At this moment, Qiu seemed to suddenly think of something and asked, "What time is it now? Has the Halloween dinner already started..."

"Oh, shit!" Kanna finally realized what was happening and said quickly, "7:10... the dinner started ten minutes ago!"

…

(End of this chapter)