Lawrence returned to the Gryffindor saloon, and was surprised to find that the fire had been rekindled, and the table was full of food, and the warmth of the fire and the aroma of the food had dispelled the gloom in his heart a little.

"Hey, come on." Fred tossed Lawrence a bottle of creamy beer, "Jordan's Burning Whiskey was last time we drank it, and that's all that's left."

"We see on the map that you're with Dumbledore." George told him, "We guess you'll probably be back at any time, so we went to the kitchen and got something."

"Thank you." Lawrence said hoarsely, the three of them sat in the armchairs by the fire, eating the pies brought out of the kitchen, but none of them spoke, listening to the crackling sound of the fire, looking at the horizon outside the window, from where the sun was shining in a little bit, Lawrence suddenly felt a sense of relief,

"Thank you." He added that if he looked like a sworn old man when he walked into the saloon, and now he was the same radiant fourteen-year-old, Fred and George laughed, and they knew that the familiar Lawrence had returned.

───────

"You said you were hiding behind this vase at the time?" Lawrence asked with a frown, he looked at the vase the size of a human figure,

"Can't say that," said George, "the old bat was chasing after him so closely that we didn't dare risk using our wands."

"And that hanging felt," said Fred, "Filch and Snape caught us from those two loaves of bread."

So they came to the blanket where Barnabas the Nerd was training the gnomes to dance, and Lawrence examined it but found nothing.

"Where did the door to the room come from?" Lawrence asked,

"Probably here, right?" Fred gestured to a certain location on the wall, somewhat uncertain,

"Who of you first discovered the door?" Lawrence asked again,

"Me." Fred said, "Does that matter?"

"What were you doing?" Lawrence said, "You must have done something to find a door that you wouldn't normally find."

"No," Fred bewildered, "I didn't do anything."

"No, Fred, you don't understand what I mean." Lawrence explained, "I don't recognize it, but there's undoubtedly a lot of magic here."

"I still don't understand." Fred said,

"We all know that there are many types of magic, even though most wizards nowadays only know how to cast spells with their wands." Lawrence said, "What I mean by what you do is that your body movements, your thoughts, even the flow of blood is an action."

"Well, but he really didn't do anything." George interjected,

"No, George." Fred said with some skepticism, "Maybe I was thinking about how to hide it?"

"If you rule out that your Weasleys have a special bloodline." Lawrence said, "So I think that's how it should be?"

Lawrence said, pacing back and forth down the hallway, and then a door appeared.

"What did you do?" George said in amazement,

"I'm thinking." Lawrence replied, he opened the door, "How to hide."

"The same utility room as yesterday." Fred exclaimed,

"But why is a utility room hidden?" George asked after closing the door, and the door disappeared the moment he closed it, and Lawrence was about to explain when he heard Filch shouting,

"What are you doing here?" Filch looked at them suspiciously, "Three sneaky guys in front of the broom?"

Filch opened the door that reappeared at some point, and it was filled with cleaning supplies, which had been piled up with debris.

"Don't let me catch you wandering in the middle of the night!" Filch grabbed a long brush and a can of detergent, and said to them viciously,

"Do you understand now?" Lawrence looked at Filch in the distance and asked with a smile,

"Probably understood, but why are you here?" Fred said,

"Who knows? Maybe the nerd Barnabas really taught the dwarfs to do ballet?" Lawrence replied,

"What is this? Do you have a response?" George laughed and said,

The three of them solved the most troublesome location problem, and now wait for Hermione to return from vacation and give them the recipe for the bomb.

───────

The day before the Christmas break, Hermione returned to Hogwarts, but there was a small incident due to the contents of the recipe.

"The black powder recipe I found for you, take a look." Hermione placed a piece of parchment on the table,

"Nitric acid, sulfur, charcoal?" Fred took the parchment and said suspiciously, "I still recognize the two in the back, what are the nitrate_acid_irons?"

"I'll only provide the formula, and you'll figure out the rest!" Hermione replied,

"How is it made by mixing the three?" George read the words on the paper, "It's not hard to understand, but why is there only materials and no proportions?"

"Aren't you smart? Why don't you figure it out yourself?" Hermione grabbed her bag and walked away in a rage,

"What's wrong with her?" George asked, and Fred shrugged,

"Probably because I feel ashamed of Professor McGonagall," Lawrence guessed, "Don't forget that she was the one who came to Professor McGonagall to denounce us in the first place."

"But not even the formula ratio," George protested, "even if it was Snape's Potions, he would give us proportions."

"No way, we'll have to try it ourselves." Fred said, "I suggest we go to the Jokowi Magic Joke Shop in Hogsmeade this weekend, where we might be able to buy these materials?"

───────

On the weekend after the Christmas break, the three of them came to Hogsmeade Village, and the clerk of Jokowi's magic joke shop said that nitric acid was probably saltpeter, and they also had sulfur, but if the amount was large, it would need to be shipped from London, about a week, and after paying the deposit, they left the store.

"We're running out of money, Lawrence." Fred said with some melancholy, "Luckily, charcoal can be obtained from the school."

"I've saved up my pocket money for a summer." George lamented,

"I don't have much money to deliver newspapers this summer." Lawrence said, "Jobs are hard to find, and the money you get has to be siphoned off by the goblins at Gringotts." (Note 1)

The three of them decided to start inventing some money-making gadgets after this incident was over, and comfort their seriously injured wallets.

"Wouldn't you two be too tired to train in Quidditch and try out the recipe for gunfire at night?" Lawrence asked, "It's almost a game, isn't it?"

"It's just a small problem, we can hold on, Lawrence," George said, "and the referees are more problematic in this game."

"The referee for this match is Snape, and I dare say he's going to be biased in Slytherin," Fred said gloomily, "I hope Harry can catch the Snitch soon."

"But if you borrow us to copy your homework, we'll be able to hold on." George winked at Lawrence, who smiled.

───────

In just five minutes of play, all Fred's words were fulfilled, Snape did use his position to favor Slytherin, and in the fifth minute of the game, Harry caught the Golden Snitch with a wonderful dive.

"It's time for the celebration feast!" The trio happily distributed the food they had brought back from the kitchen to the Gryffindor students who were noisy in the saloon, and even Percy praised Fred and George for doing a good job.

"He didn't accuse us of breaking into the kitchen?" Fred was incredulous,

"Actually, he's just a little more serious." Lawrence said, "You shouldn't be too him."

"Oh, maybe?" George said skeptically,

At this time, Harry, Ron, and Hermione came to Lawrence,

"You say Snape threatened Quirrell to help him find the Philosopher's Stone?" Lawrence frowned as he listened to the not-so-good news,

"He also asked Quirrell if he knew how the three-headed dog broke through, and we guessed that there might be other levels defending the Philosopher's Stone, and Snape just wanted to know which level Quirrell was responsible for." Harry said adding,

"Have you ever thought about it?" Lawrence thought for a moment and asked, "If you protect the Philosopher's Stone, Dumbledore must be involved, so how can Snape break through Dumbledore's level?" Just ask?"

"Uh......" Harry was stunned for a moment, unable to answer,

"Maybe Snape has a way?" Ron said with some certainty,

"If Snape has that ability, then he should go straight to the level." Lawrence said bluntly that he had seen Dumbledore's power in his memory, although his memory could not express the sense of oppression that Dumbledore showed at that time,

But the strength that can make lawless dead eaters, even if they have the advantage of numbers, is powerless to resist, and even the strength to escape is undoubted.

The three Harry seemed to be convinced, but the psychological uneasiness was still written on their faces.

"Don't think about this kind of question, there's not much food, don't you come? The big hero of today's game?" Lawrence asked in a brisk tone,

Harry smiled embarrassedly, and the four of them left the empty room for the celebration in the saloon.

───────

Note 1: I didn't check whether child labour is allowed in the UK, so I don't need to worry about such a trivial matter, it may be illegally employed......

Author's note: Why did I click on my book review section last night, and suddenly become my own fan? Is there a fan worth it? What kind of hex is this?! The first time I used this thing, I couldn't understand it.

Then today, Friday, I'm going to go home, I don't have a computer at home, I should be back on Sunday, sorry (waving)