Note: The passage Draco reads from his book was created by me :)
"What are you doing here, Malfoy?" Ron demanded, jumping to his feet in a gesture that was probably meant to be intimidating, but the effect was extremely dulled by the fact that he was carefully cradling a swaddled baby in his arms.
"Relax, Weasel," Draco sneered. "I don't want to be in your filthy Common Room any more than you want me to be, so let's just get this over with, shall we?"
"Why did you bring him here, Hermione?" Harry demanded.
"Look," Hermione said, "I know that none of us like him- because he's an arrogant, obnoxious, disrespectful-"
"- pigheaded," Ron interrupted, "ugly, stuck-up-"
"- prat," Harry finished, scowling at the platinum-haired Slytherin. "And that's just to name a few."
Draco smirked. "Is that the best you can do, Potter? 'Prat?'"
Harry opened his mouth to respond, but Hermione cut him off.
"So we all despise him," she continued, "but, as much as I hate to admit it, he's the best Potions student in our year. We need his help."
"That you do," Draco agreed, eyeing the baby in Ron's arms. "That's Professor Snape?" He scoffed. "Wow, Potter, you're even worse at Potions than I thought- and that's saying something."
In an instant, Harry had his wand in his hand and was aiming it right at Draco's chest.
"What are you going to do?" Draco leered, his gray eyes glinting. "Hit me with a spell?"
"Harry!" Hermione cried indignantly. "That's enough! We need Malfoy's help, whether we like it or not."
Hermione started walking towards them, Draco following close behind.
Draco peered down at Baby Snape, who was sleeping soundly. "I can't believe this used to be our Potions professor," he murmured thoughtfully. His steel gaze snapped up to Harry's. "And I can't believe you actually created a youth potion. Even if it was accidental, a potion like that could sell for hundreds of thousands of Galleons."
"I don't want the money, Malfoy," Harry sighed. "I just want to get Snape back to normal before anyone finds out what I did."
"So… Dumbledore doesn't know?" Draco asked, sounding interested- too interested.
"Don't even think about blackmail, Malfoy," Hermione said, her voice dangerously quiet. "You will help us, and then you will leave. Do you understand?"
Draco glanced at her, a brief flash of fear passing through his face. "Of course, Mudbl- Granger," he corrected himself quickly after seeing Ron glaring daggers at him.
"We also brought some books," Hermione remembered. She reached into the pocket of her robes and pulled out five miniscule books, each the size of a quill tip. She tilted her hand, letting them tumble off her palm and onto the Common Room carpet, before aiming her wand at them and murmuring a spell.
The books grew rapidly until they were full-sized, lying in a pile on the ground.
Hermione plopped down cross-legged beside the pile of books and pulled the thickest one onto her lap, flipping it open.
She looked at the three boys expectantly. "Well? What are you waiting for?"
Harry sat down first, grabbing a book for himself, and Draco took a seat beside him. Warily, Ron sat down between Hermione and Harry, glancing uneasily at Draco the whole time.
"Where do you want me to put Snape?" Ron asked. "I need my hands to read."
"Just hold him," Hermione said, not even glancing up from her book. "We'll take shifts. After Harry's done reading, he'll take him, and you can have a chance to read."
"Why do I have to take him?" Harry complained absently.
He got no answer. Both Hermione and Draco were too engrossed in their reading to hear him.
After a good ten minutes of silence broken only by the sound of flipping pages, Draco spoke up.
"I think I found something," he announced, pointing to a spot on the page. "Listen to this: 'The emouria flower has been a well-revered one for centuries, for, when mixed with gheginjor root, it can make the injured or the elderly feel stronger and healthier. However, all the parts of the emouria flower have their own special uses, not just the nectar. Emouria seeds are said to lower one's intelligence- often times, wizards play pranks on other wizards by slipping an emouria seed into their food. Once digested, this seed can make even the wisest of wizards as un-matured as a child.'"
"That could explain why Snape's a baby," Hermione said slowly. "I thought the seed might have something to do with it, and I think this just confirms it. Harry must've accidentally dropped a seed into the gheginjor root along with the emouria nectar."
"But it's not like Snape drank the potion," Harry reminded them. "He was just holding it in a vial, and it exploded in his hand."
"Maybe it had something to do with the seed being combined with the root?" Draco suggested. "I mean, it would make sense… health and lowering intelligence could theoretically turn someone into a baby… right?"
Ron, who had been quiet the entire time, spoke up. "We need an antidote. There's got to be some sort of antidote."
"Do you know how to make one, Malfoy?" Harry asked. "An antidote. Do you know how to do it?"
Draco bit his lip. "I've got an idea in mind, but it's a potion that'll take a few days to complete."
"Great!" Harry said, relief evident in his voice. "Perfect! When can you start working on it?"
"I can- I can start now, if you want," Draco suggested. "But… I don't know for sure if it'll work."
"An idea is the only thing we have right now," Hermione said. "Let's all head down to the Potions classroom. Draco should have all the ingredients he needs down there."
"How are we supposed to bring the baby down there without being spotted?" Draco asked.
Harry, Ron, and Hermione all exchanged a glance.
"Don't you dare tell him," Ron warned.
"We have to," Harry replied.
"No we don't," Hermione interjected. "We can get down there with the baby, and he can go down there by himself."
"He doesn't need to know!" Ron insisted.
"Care to fill me in on what's happening here?" Draco interrupted dryly. "In case you haven't noticed, reading the minds of three arrogant Gryffindors isn't exactly my talent."
Harry took a deep breath and Hermione just shook her head in defeat.
"I have an invisibility cloak," Harry admitted.
The look on Draco's face was well worth the confession- his expression went from stunned to shocked to disbelieving in a matter of seconds.
Finally, he sneered. "Don't lie to me, Potter. Invisibility cloaks don't exist."
Ron snorted. "See? This is what we get for telling him."
"Harry's telling the truth, Malfoy," Hermione sighed, sounding resigned. "We don't care if you don't believe us." She turned to Harry. "Where did you leave the cloak, anyway?"
"It should be somewhere here," he murmured, running his fingers along the Common Room carpet, groping around until he felt silky cool fabric beneath his fingers. "Found it."
Draco watched, looking a mix of suspicious and eager, as Harry picked up the cloak and tossed it over his head.
In an instant, he had vanished.
Draco's jaw dropped. "How- where- Potter, are you there?"
Harry smirked. Leaning forward so his face was inches away from Draco's, he whispered, "Boo."
Draco shrieked, recoiling and falling over backwards in an attempt to scramble away from the voice that had come out of nowhere.
Harry pulled the hood of the cloak off his hair so only his head was visible, snickering. Ron had burst out in laughter, and even Hermione was struggling to stifle her amused smile.
Draco flushed and quickly stood, brushing off his robes. "We have to get down to the library. And I'm not carrying the professor."
With that, he held his nose in the air and strode towards the portrait hole.
"Good one, Harry," Ron grinned, standing up as well, being careful as to not drop Snape. He, Harry, and Hermione joined Draco at the Common Room exit.
"So, how should we do this?" Hermione inquired thoughtfully.
Harry shrugged- at least, he tried to shrug, but nobody saw it, since his body was still invisible. "Well, we can-"
"Potter," Draco interrupted, "do you mind taking off that cloak? Seeing your talking, floating head isn't exactly a pleasant sight."
Rolling his eyes, Harry pulled off the cloak completely, and his body re-appeared beneath his neck. "As I was saying," he continued, "whoever carries Baby Snape needs to be wearing the cloak."
"I'll carry him," Hermione offered.
"Thank Merlin!" Ron gushed, thrusting Baby Snape into Hermione's arms. "He's all yours."
"Ron!" Hermione scolded. "He's a baby. You've got to be careful when passing him off."
She carefully arranged Baby Snape's head so it was nestled comfortably in the crook of her elbow. "There."
Harry then stepped forward, throwing the cloak over Hermione and fixing it so she was completely invisible.
"Ready?" Ron asked.
"Ready," Hermione's voice confirmed.
Ron nodded and stepped through the portrait hole, followed closely by Harry, invisible Hermione, and, finally, Draco.
"Distasteful," the Fat Lady muttered as her portrait swung shut, sealing the Gryffindor Common Room. "Allowing a Slytherin into the Common Room… an absolute disgrace."
Ignoring her, the four hurried down the corridor, heading for Snape's Potions classroom.
"You still there, Hermione?" Ron asked in a low voice.
"Yep," Hermione replied, "I'm still here."
They stuck close to the wall as they passed by a mob of chattering first-years, trying their hardest to be inconspicuous. They made their way through countless corridors and staircases, the three boys nervously eyeing the invisible figure that walked beside them, afraid he would make a sound and give Hermione away.
They were nearly at Snape's classroom when, to their horror, Snape began to cry.