𝟘𝟡 | 𝕄𝕀𝕊ℂℍ𝕀𝔼𝔽 𝕄𝔸ℕ𝔸𝔾𝔼𝔻

                                    

                                          
It was well into December when Fred and George took Jane aside to have a word with her. "We need to talk about Harry," said Fred.
"Did something happen to him?" asked Jane nervously.
"It absolutely did."
"He's been forced to stay at Hogwarts, even for the next Hogsmeade visit, Hogsmeade is fantastic in the snow," said George.
"And he's going to miss it."
"Unless-" George took a piece of parchment from his back pocket "We were thinking..."
"If Harry Potter was in possession of a certain map-"
"The three of us know by heart-"
"It might make poor Mr Potter's third year a little less miserable."
"And you're telling me about it because...?" said Jane.
"Because you're our number three," said George.
"There's three of us, three have to agree."
"It's your map." said Jane "Who am I to-"
"It's our map." 
Fred chuckled "Communism, baby."
"I think it's a fantastic idea." she said "I agree, we do all know it by heart, it's time to pass it on. Shan't be greedy."
"Shan't be greedy." agreed Fred "I say one last adventure and then we pass it on tomorrow?"
"Midnight?" said Jane.
"Something unforgettable," said George.
"Something that would make the Marauders proud," said Fred.
"Something like..." Jane's eyes fell on a single Filibuster shining out from beneath Fred's bed "Do you know what I love about potions?"
"The class?"
"No, the thing itself. Once it's done, no matter what you put into a potion or do to a potion, it's going to keep its original purpose."
"Oh, Lupin you have an idea, don't you?" asked Fred shaking her shoulders "I love when you do that."
"You see," said Jane "the Erumpent chips are so simple, yet so clever. Coated with a bit of anti-leakage solution and they won't explode unless the coat melts away-"
"At any contact with liquid, except for the liquid it's containing," said George.
"Follow me." said Jane, walking into their bathroom and climbing into the shower, "Just as I thought." with a successful smile, she unscrewed the showerhead from its collar "Fascinating things aren't they? Showerheads."
"They are?" asked George.
"Yes," said Jane "Because you see, you could fill any sort of liquid into the showerhead itself, and it wouldn't leak out, because there's no water pressure." she took her inkpot from her bag and let some of it drip into the showerhead "See? Nothing's coming out. But-" she screwed the head back on and stepped out of the shower before turning the water on "add a bit of pressure and it all comes out." she held a finger under the blue water and pulled it out to show that it had indeed been painted blue as well.
"So, we fill the showers with ink?" asked Fred.
"Think... bigger." smiled Jane "You see, last year, you gave Harry a Filibuster, and Harry set it off during potions class- it was chaos, y'know? The Filibuster flew right into Malfoy's potion and it blew up everywhere. Malfoy's nose was huge."
"Say, Lupin, are you talking about Swelling Solution?" asked George.
"I most certainly am. How long does that take? Maybe twenty minutes tops. Mix it with some ink, fill it in every single showerhead coated with anti-leakage solution to protect the head itself, wait for the morning to come. One unlucky person per dorm is going to be one huge blueberry, not to mention that the Head Boy-"