I feel that I have to say this: I do not own anything you recognize. I am only doing this for fun and everyone owns what they own and I only own the things you do not recognize. This probably won't make sense until you read the chapter, but let's just say I was listening to a song that I'm sure everyone here as listened to at some point. Right after I finished listening to it, I sat down to write the beginning of the chapter so I guess this was inspired by the song. Enjoy.

Everything was ready to go for the prank. Ursula and her friends had been on their best behavior during DADA, no modest accomplishment since Avery seemed to be particularly cruel towards them that morning. It didn't help that it was a double class period. But they sat through the lecture and they took diligent notes. The only snafu was while they were talking notes, Sirius almost lost his temper because of Avery being his usual self.

"I'm surprised," Avery sneered when they took out their books and parchment silently, "I thought you lot would have made some smartass comment already. Pity. It's usually better than the stuff you spew out when you try to sound intelligent."

Sirius had gripped his quill so tightly that he snapped it in half. His knuckles had gone white and his face was flushed with anger. His teeth were grinding together so loudly that James heard it next to him while Sirius had to physically stop himself from sassing back. It seemed to cause him actual physical pain as his grey eyes had sparks of anger in them, reflecting the anger that was within.

But James put a hand on his shoulder and calmed him down,

"Control yourself Black." he hissed into his friend's ear.

He was able to control himself until the end of class. Avery had a habit of talking to his nephew, who conveniently was Peter's assigned potions partner after an incident earlier in the year.

James grabbed Sirius's enchanted spiral and wrote to Remus and Ben, who had borrowed Ursula's identical notebook.

Ready?

The message came back almost immediately in Ben's perfect calligraphy,

Ready

Go

About two seconds later there was a ticking noise. The chatter in the class died down as the ticking noise got louder and louder.

"Whoever is making that noise, stop." Avery ordered with agitation and haughty authority in his voice.

The ticking continued.

A vein on Avery's forehead started to bulge out a little, "Whoever is tapping their quill needs to stop immediately or they will get detention for the rest of the school year."

It just kept on ticking. Lily was the one that spoke up, surprisingly, "Sir, everyone's stuff is away. No one is making the noise."

Avery's brows furrowed in annoyance and confusion. He started looking around the room as if the cause of the ticking out jump out at him or stop when he found it.

"What is that mysterious ticking noise?" He muttered to himself as he looked around.

His nephew, a Slytherin named Dalton Avery, started to look around his desk. He looked under his chair, under his book bag, and finally under his desk. He froze under his desk and shouted out,

"I found the source of the ticking!"

Avery clapped his hands together, "Finally." He started to walk back over to his nephew to get whatever caused the offensive sound. He pulled out a cylindrical metal tube that had a small clock on the side.

"IT'S A PIPE BOMB!" A muggleborn kid who sat behind him shouted as he dove under his desk. Everyone quickly followed suit, except for Dalton who looked in panic at the 'muggle bomb' and Avery who was running back towards his family member.

The bomb exploded in a flash of light. James and Sirius grinned at each other from under their desk and high fived at their bomb working. They had taken some inspiration from their uncle and father and they didn't know it was going to work. It worked better than they thought.

There was silence in the room after the bomb exploded. Elyse chanced a peak over the top of her desk with Ursula and she almost fell back with laughter. The tips of Avery's hair were burnt and there was a lick of hair that still had a small flame at the end of it. His face was covered in boils and so were his hands. He let out an extremely feminine sounding scream when he saw the condition of his hands. He brought his hands up to gingerly touch his face and he whimpered when he felt the roughness and unevenness of his face. Dalton was in a similar state as his uncle. He was screaming bloody murder as he frantically groped his face, causing the boils to pop and cause green ooze to slowly make its way down his face.

Ursula, Sirius, James, Ben, Remus, Elyse, and Peter were practically in tears they were laughing so hard. Alice and Marlene were also laughing. Lily, on the other hand, looked angrily at James but Ursula saw the corner's of her mouth twitching up a little bit.

The bell rang before Avery could order them all back. The septet gathered in the hallway after they frantically ran out of the room. James had a triumphant and slightly sadistic look in his eyes,

"Did you see their faces! Merlin, that looked painful! Everything is going exactly as planned!" He clapped his hands together and rubbed them conspiratorially. The rest of them followed him down the hallway towards Potions.

"We need to make sure we have everything. Sirius, do you have the firework?" He asked the boy to his right.

Sirius nodded and patted his pocket, "Brought an extra one in case."

James nodded in approval, "Nice thinking mate. Elyse you still have my cloak right?"

She nodded and put her hand on top of her messenger bag, "Right where yeh saw me poot it 'his mornin," she said.

He nodded once again and then turned towards the other girl in their little group, "And do you have-"

"I have the bag Ben gave me for my birthday. I convinced Lily to charm it for me last night so it wouldn't feel like it weighed anything. She thinks I'm carrying a bunch of library books in it."

James smiled widely and practically started skipping, "Oh I can't wait to see Snivellus's face when we blow up his caldron!"

Peter looked worried and pulled at his collar, "This potion isn't going to hurt me is it?"

James turned around, annoyed that Peter was stealing his thunder. He sighed impatiently, "No, you should be fine. But even if it does burn a little, you're doing this for Remus. You would do anything for your friends wouldn't you? Besides, I believe in you."

Peter smiled widely and turned a little red at the obviously fake words of encouragement. Ursula met James's eyes, her eyebrow quirking up slightly. He just rolled his eyes and shrugged in response. He turned towards Remus and Ben, who were walking next to each other a little behind them,

"Now you two, Sirius and I need you to be our eyes. When you think it would be best for us to set off the firework and when Slughorn isn't looking, just give us the signal."

The two of them nodded silently. By that time they made it to the dungeons and they were standing outside their classroom. They looked at each other, trying to look innocent and decidedly not up to something. It was a mixed result.

Slughorn was not in the room when they walked in. Ursula and Elyse went over to the desk closest to Slughorn's private stores and they threw their bags under the desk. The boys went over to the other side of the room to sit near where Severus usually sat.

"Do you want to use your cauldron or mine?" Ursula asked.

"Yeh's. Mine's all wonky." Elyse said.

Ursula nodded and walked to the back of the room to get her cauldron while Elyse got out her potions book for them to share.

They had just finished setting up their cauldron when Slughorn walked into the room. In Ursula's opinion, he was much too cheery and nice to be a Slytherin, more like a Hufflepuff. But somehow he was the head of the house and none of the Slytherins had any problems with him. They all seemed rather close to him in fact.

Slughorn was smiling as he scanned the room, "Alright students! It's time to start working on the boil cure potion. If you would ple-" he cut off suddenly and looked peculiarly at Peter, "Mr. Pettigrew, where is your partner?"

Peter quickly answered, "There was an accident in Defense today."

"Yeah," James piped up, "He had to go to the hospital wing. I don't think he's coming back for the period."

Slughorn looked troubled by that news, "How badly was he injured, I dare ask?"

Ben answered him, "It's nothing that Madame Pomfrey won't be able to fix in a jiffy. He'll be back in time for lunch, I suspect."

The potions professor nodded, a crease of worry still on his forehead, "Well, Mr. Pettigrew, even though we normally have an odd number, you can't work on a potion alone so you can work with Severus today."

Peter gathered his things and went to go sit next to the Slytherin boy sitting in front of James and Sirius. He tried to keep his face impassive but even Elyse could see his knuckles turning whiter as he gripped the edge of the table in anger. He closed his eyes and took a deep breath,

"But Professor, I work," he paused a moment to gather his nerves, "alone."

Slughorn just waved Snape's concern away, "Think of this as a learning experience my boy! Maybe one day you'll grow up to teach this class once I retire. You'll have to be able to share your vast knowledge with others."

"I will never become po-"

"Wonderful! Now, everyone you should be able to finish this potion before class is let out. The two students that have the best potion will get a little surprise." He tempted them. Everyone split up while some went to the student stores while others tried to find the potion in their books.

Ursula and Elyse were purposely moving quickly. They needed to get to the part where they would let the potion sit for forty minutes. If they were at the wrong part when they had to abandon it, it wouldn't be pretty. Sirius and James were working along the same thought process. They were rushing but they weren't paying that much attention. Peter was stumbling after Snape, knocking over ingredients and compulsively checking the book. Snape looked ready to murder him.

Just a little over halfway through class, Remus gave the warning signal to Elyse and Ursula. He dropped his potions book on the floor. Ursula discreetly grabbed her bag while her red headed friend grabbed the very corner of the invisibility cloak in her bag.

The second signal was sounded by Ben a minute later. He clinked together his brass scales three times. Exactly two seconds later, there was a great explosion across the room. The boom made the walls vibrate and possibly caused hearing damage to those closest to the explosion. The thick smoke that quickly covered the room was the perfect cover for Ursula and Elyse to cover themselves with the magical cloak. They navigated their way into the stores unseen by anyone while everyone panicked over the second explosion in two class periods.

The second they were in the stores, Ursula left the cover of the cloak and started scanning Slughorn's shelves.

"Books on advanced potions, famous potioneers," she muttered to herself as she scanned the titles and subjects.

Elyse looked back towards the classroom where the smoke was starting to thin slightly, "Hurry oop. We's don't got a loot ov time," she harshly whispered.

"I can't find- Here!" She started grabbing books off the shelves. They were titled along the lines of How to Cure Magical Bites, How to Break Curses, and To Reverse the Irreversible. "Help me!" Ursula whispered back at the panic lessened in the room.

Elyse rushed over and started shoving books into Ursula's bag. She still had the cloak fastened around her neck. While she reached up to grab a book, the fabric caught on an unlabeled vial. No potion started dripping down the wooden shelves nor did it ruin any book. What was trapped in that vial was black smoke. Ursula happened to be just above eye level with the vial when it broke so the black smoke wafted up into her eyes before she could move away. The reaction was instantaneous. She screamed in pain and brought her hands up to her eyes to try to stop the burning. She stumbled back while rubbing her eyes. Ursula was whimpering in pain when she fell backwards, her eyes still burning.

Elyse went to go help her friend but Ursula's yells had alerted Slughorn so Elyse was forced to stand perfectly still, black smoke trapped under the cloak. Very carefully and very discreetly, she stuck her foot out to kick the bag containing the stolen books under the cloak. She squeezed her eyes shut, trying to avoid getting any of the mysterious smoke in her eyes.

"Miss Black, what are doing? Are you alright?" Slughorn asked her, kneeling down at her side when he found her lying on the ground, pushing her hands into her eyes to try to stop the pain.

It took Ursula a second to respond, "I'm sorry Sir. I was just trying to," she had to swallow back some of her tears, "see if Peter was oaky after the explosion. I couldn't see where I was going because of the debris so I must have tripped on something."

"But what happened to your eyes dear?" Slughorn asked.

Elyse wanted to hit the man at that moment. The urge to cough was almost too great for her to handle anymore. If she could she would have gone around the pair but by that point a group of students had congregated at the door to see what the fuss was about, effectively cutting off her escape.

"I hit the ground hard and I disturbed some of the dust on the floor. I think it got in my eyes."

Slughorn nodded understandably, "I haven't swept in here in years. I should probably get on that. Here, let me help you up."

He stood up and offered her hand down to her. He gently pulled her to his feet and made sure she was steady before he let her walk out of the room. Sirius was the first person at the door and he wrapped an arm around her shoulder to help guide her through the crowd since she was still frantically wiping her eyes. Ben placed a comforting hand on her shoulder while Remus and James went over to their desk to get their things. Slughorn had dismissed class early because Snape and Peter were now in the hospital wing because of their injuries. Also, he needed to clean up the mess the explosion made.

"Did you get to books?" James asked her, his mind focused completely on if his plan worked.

Ursula nodded with her eyes still closed, "Elyse has the bag. I don't know where she went."

"Was she still in the store when you fell?" Remus asked her.

Ursula nodded while explaining that she really didn't fall. The six guys looked at each other once she finished her story. They were about to respond when Elyse appeared out of nowhere.

"Sorry aboot 'hat. I needed teh get soom fresh air," she explained.

Since Ursula still wasn't able to open her eyes or keep her hands away from her eyes, Sirius led her to sit down on a large window ledge. Ben knelt down in front of her and placed his cool hands on her wrists and spoke to her calmly,

"Ursula, you need to stop rubbing your eyes. It will just make it worse."

She shook her head. It hurt too much. "No." she said defiantly.

Sirius rolled his eyes but joined in with Ben to gently coax her to open her eyes. James and Remus turned to Elyse,

"Do you know what the black smoke was?"

Elyse shook her head, "Teh vial was unmarked. I's got no idear."

"Did it have a stopper on top? Did the smoke have room to move around?" Remus questioned.

She thought back for a moment. "Yeah, boot." She nodded.

James nodded his head knowingly, "My dad has something like that except his is Gryffindor colors. He said that he got it when he was at Hogwarts so Slughorn probably just has the Slytherin version of it or something. There's nothing to worry about."

By this time, Ben and Sirius had got Ursula to move her hands away from her eyes. They were red and agitated but there was nothing that was obviously wrong with them. They looked perfectly fine to the boys.

"Let's go back to our dorm and start going through those books." James suggested.

Ursula nodded, pushing herself off the ledge. She blinked a lot on the way back to Gryffindor Tower and Elyse had one coughing fit but they were fine by the time they got back to the tower. Peter joined them a little bit later, the effects the potion had on him were gone due to the wonderful skill of Madame Pomfrey. All was well as they looked through all the books Ursula and Elyse took from Slughorn. There was some promising stuff at a quick glance so they planned on going to the library the next night to see if they can find out some more to help Remus's 'furry little problem', as James had now officially named it.

James had viewed the day as a total success. There was the slight hiccup with Ursula and Elyse but he commended them on thinking on their feet. Absolutely nothing had gone wrong.

Well, that is, that he knew of.

I hope that you enjoyed this chapter! I'll keep this one short. I appreciated everyone's reviews from the last chapter(s) and I hope that everyone will leave a review. It would make my day and make me write faster!

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