The Lone Wolf in The Night.

It was the first dawn after a full moon. Faolán awoke on the outskirts of the Forbidden Forest, completely naked. "Man, parties at full moons are always wild..." he thought. This was, of course, just denial. Deep down, he knew exactly what had happened. He has a condition, you see... One that wakes when the moon shines on the night sky with all of its glory, for he is a werewolf. "Well, there is no helping it." The blue-eyed boy thought "Time to get back to Hogwarts... And better cast a disillusionment charm, just to avoid unpleasant encounters." He was a completely new person compared to yesterday, full of energy and vigor. You see, as the full moon draws closer he starts to become more and more irritable. But not today! Today he is free of all this burden for a whole month and if he hurries, he can still catch the morning classes! Life is great. At least, it was, until the afternoon... 
As he entered his dorm, he noticed something strange. A letter was waiting for him on his bed, sealed and unopened, which, knowing his roommates, was weird. 
"What's this about?" he asked. 
"I dunno, man." His roommate replied with somewhat of an indifferent voice. "It was here by the time I got back." 
When he picked it up, he noticed a text on it:
"To Faolán! Warning: This letter will curse anyone else who tries to open it. You will vomit blood for a week."
"Is the warning legit? Has anyone tried to open it?"
"No, man. It has the Slytherin seal on it. I'm not taking risks with those weirdos!" came the reply.
Indeed, it had. A small snake symbol in the corner of the letter. What could someone from Slytherin want with him, the scruffy boy wondered. Well, there is only one way to find it out. Faolán felt a chill running down his spine as he opened the letter. The whole message was but a single sentence: "I know what you are. Please meet me tonight at the Tower on the Hill, between the bridge and the Quidditch Pitch!" He crumpled the paper then went and threw it into the fireplace. "This is bad!" he thought. "If someone from Slytherin starts to spread rumors about my condition, —non-existent condition, that is—then by next week, the whole school is gonna hear about it." These thoughts swirled in his mind, as he paced up and down in the common room. 
The night came. He stood in front of the tower, hand on the doorknob, contemplating. What is the best course of action? Negotiation? Intimidation? Denial? This was clearly just a big misunderstanding, one he was about to clear up, one way or another... He took one last deep breath, straightened his posture as much as he could, lifted up his chin a little bit to look even taller, turned the knob and entered the Tower. As Faolán strolled in, he immediately noticed the silhouette standing in the shadow. How typically Slytherin of them! The black-haired boy was not impressed at all. The silhouette started to move, rustle, and step out of the shadow.
"Ah sorry, I was searching for something to sit on, a stool or something, maybe..." said the young wizard, stepping out of the shadows. Faolán recognized him. He is that creepy Slytherin who lower class students are afraid of. The one their fellow 5th graders want nothing to do with. He is the one who has all those outlandish rumors about him, like when a girl from Ravenclaw claimed that he is part dementor or when a 7th grader claimed that he was him cutting out and eating a troll's heart. What was his name again? Artorias? No... That's the other one. Ambrosius? No... That just sounds wrong. "Greetings, name's Atrocius..." Ah, yes, that's the one. Just how on-the-nose is that?
"Hello." Said Faolán in a monotone voice. "Are you the one who sent me that letter?"
"Yes, that was indeed me! I was wonderi-"
"Look, I don't know what you heard, but those rumors are false, I'm not a werewolf- Faolán deepened his voice a bit and spoke somewhat louder, to really drive the point home. -and you better don't start spreading FALSE rumors."
"I... I didn't actually hear anything, per se..." the wizard with the brown hair continued. "I have seen it."
Faolán panicked a little. What exactly has he seen? Did he see him sneak out at night? Did he see him transform? He had no choice; it's intimidation time. Chin up, stare down, and get close. "I don't know what you've seen, buddy-" he said, stepping ever closer. "-but I'm sure you. Saw. It. Wrong." With each word, he stepped closer and closer, until he stood right in front of him.
"I'm pretty sure it was you. You aren't really hard to miss, you know?" stated Atrocius, tilting his head slightly.
Is this not working? Maybe he needs to get closer. Just a little bit closer. Maybe an angry stare too. Faolán leaned in so close to the Slytherin boy, that even he started to feel uncomfortable, but Atrocius didn't even flinch. He eyed Faolán up and down, studying his posture, his expression, and then he spoke. "Ah, you have bad eyes, sorry, I should have gone closer. I should have guessed from the glasses."
"What?!" the suspected werewolf exclaimed. "How can someone have such a lack of social awareness?! he thought. "There is nothing wrong with my eyes! I am trying to intimidate you!" He finally blurted it out, only realizing what he said afterwards while backing off a few steps.
Atrocius stood in front of him, and there was a few seconds of awkward silence between the two. "Oh..." He finally broke the silence, before his eyes widened in realization. "Oh, you must think that I am trying to blackmail you or something... No, sorry, I didn't mean to come through that way." he said, speaking really fast, trying to explain himself. "In fact, I wish to help you with-"
Once again, Faolán interrupted his awkward speech, as he grew increasingly annoyed. "Look, my guy, I don't need your help, I am not a werewolf. Leave me alone; I'm outta here!" he said, as he turned away to leave. He strolled out of the building as quickly as possible, only to yell back as he started walking down the hill: "Stay away from me! And don't go around spreading rumors!" 
This month was harder for him than the rest. He was on the edge all month, trying to catch weird stares, people whispering behind him, or just looking around to see whether that weird guy from Slytherin was following him around or not. Things just got worse as the day of the full moon drew near. He was more on the edge than ever before, becoming increasingly paranoid. "Tonight is a full moon. I need to leave the school early, I don't want anyone to follow." He thought. After grabbing some old rags—ones he doesn't mind ripping apart while transforming—the boy cast a disillusionment charm and left the castle. He made haste towards the Forbidden Forest, making sure he wasn't being followed. He walked down the road, passed the warning sign, entered the forest, and then... He just waited. This was always the hardest part. No matter how many times he transformed, he could never get used to the pain; skin stretching, bones deforming, and the absolute horror of losing himself... His very humanity.The sun was setting, and slowly the last rays of its red and orange light disappeared on the horizon. Then, the moon finally showed itself, but before it's very first rays shone on the soon-to-be wolf-man, he heard a familiar voice. 
"Faolán?" It was the person he wanted to see the least. Atrocius.
"What are you doing here? Run you idiot before I'm going- AAaaagh!" Too late. With the first rays of the full moon, his pupils widened, and his bones began to crack and shift. Clothes torn, and his humanity slipping. "No..." He thought "I'm not going to hurt anyone... I'm not going to... I'm not..." With his last shreds of humanity, he turned towards the depths of the forest and ran. The brown haired Slytherin yelled after him, telling him to wait, but that's the last thing he wanted to do in this situation. The young wizard sighed, and quickly ran after Faolán. He knew that this part of the forest is unsafe. He saw several poacher gangs around this part of the forest just a few days ago. 
As Atrocius made his way through the forest, he suddenly heard a loud whimper of a wolf... Or something similar. He made his way towards the source of the sound, and there he found him. A werewolf, —no... Faolán— with his leg trapped in a bear trap, the poachers' work, no doubt. When he noticed the approaching Slytherin wizard, he started growling first, then he lashed out, clawing in his general direction, but as he readied to pounce and tear him asunder, but the chain clanked... A sharp pain and a whimper... The werewolf despite the wound, stayed alert, ready to attack, should the boy come closer.
"Easy there, Faolán... I'm not trying to hurt you. I can get that off your leg. Easy... Easy..." whispered the boy, moving towards him really slowly. He finally reached the danger zone. Faolán can reach him here, and he knew that. Atrocius, against his better judgment, continued to get closer. He didn't attack, not yet. Just watched. Atrocius kept talking the whole time, trying to calm Faolán. He reached for the trap, but the wolf-man snapped at him with his jaw. "Easy, I just want to help..." The boy reached into his backpack and pulled out a piece of roasted chicken meat. Faolán smelled the garlicky meat,  and looked at the boy. He slowly reached his hand with the meat out, which the Huffle-wolf took, and started eating. Bite by bite, the meat started to disappear, and then  when the last bit of the meat was gone, a clanking sound, and the trap released him. The werewolf jumped away in an instant, battle-ready once again, but the attack never came. He just waited. The brown haired Slytherin once again reached into his backpack, and pulled out yet another piece of meat. The wolf-boy relaxed his stance. He reached for the meat and took it, then devoured it in an instant. While he was eating, the boy used a healing spell on the werewolf's leg.
Atrocius sighed. "See, I knew you'd like it. Let's get out here befo-"
"Oi, who'z 'dere!" came a sound from close-by. Faolán once again stood alert, and so did the wizard boy. The shadowy figures who came out of the woods were undoubtedly poachers. "Oi, that's a werewolf, innit? And some brat from the school! They ruined our trap, mate!" Git'em!"
"I ain't gonna fite a werewolf! Ye lure it away!"
"No! Ye lure it away, mate; I ain't wanna get bitten!"
Suddenly, even more poachers approached from between the woods. Faolán was ready to jump, and Atrocius was ready to cast some curses. The werewolf looked at the boy as if he knew that they were on the same team. The Slytherin looked back with a reassuring gaze. The battle began. Spells flew left and right as Atrocius kept casting nasty curses on the poachers and different versions of "Protego" on the charging Faolán to deflect the opposing spells, while the werewolf laid waste upon the poachers. Suddenly one of the poachers, a robust man, emerged from the shadows. Atrocius knew, he was a dark wizard. Takes one to know one after all... He also knew that look. That is the look of someone hell-bent on murder. Atrocius moved as fast as he could to catch up with the werewolf, hoping it wasn't too late. 
"Avada Kedavra!" the poacher yelled, as a green beam erupted from his wand, going straight for Faolán. The Huffle-wolf had no time to react, let alone dodge. The spell connected with a green blast and smoke, but not with the intended target. In front of the werewolf stood the brown-haired Slytherin, seemingly unfazed, as if he hadn't just suffered the worst of the three unforgivables. "What? How are you still alive?!" yelled the poacher.
"Takes more than one..." came the answer, along with a "Stupefy". Faolán began to charge.
"Lure it away, mate!" One of the dark wizards shouted again. 
The other poacher, a younger boy, seemed to think for a moment, then exclaimed. "Expecto Patronum!" A hare made out of light appeared. The werewolf stopped in its tracks as it saw the rabbit hopping away. As if charmed by a primal instinct, the werewolf ran after it, trying to catch it, but that's not all the patronus did. Atrocius suddenly felt cold and weak. As the light of the patronus filled the forest, he felt all his strength drain away. The cursed blood within his veins stirred and twisted as if turning on itself, and the boy collapsed to the ground, shivering. The poachers stood there, confused. 
"Tha' 'ell is this thing?" asked one of the poachers. "It took tha' killin' curse like it was nothin', but can't take tha' patronus?" What do we do with 'im now? I say we set 'im on fire and let tha' flames do tha' work for us!
As the poachers approached the shivering boy, suddenly they heard a howl, from within the forest. Then fangs, and claws flashed, as Faolán jumped onto one of the poachers from behind, ending him instantly. Scared, the young poacher boy who cast the Patronus charm ran away screaming. The other poachers took a battle stance, and started blasting their spells away, but none of them connected, for a shield had been protecting the werewolf, a protection charm. Even in his weakened state, Atrocius kept the protection up. The rest of the battle was one-sided, as the well-protected Huffle-wolf decimated their ranks, after which he walked up to the boy shaking on the ground. 
"You came back..." said the shivering Slytherin. I guess it's over, isn't it, buddy?" Faolán leaned close to the boy and then started poking, pushing, and nudging him. "Hey, stop that! I'm okay, I'm okay... I just need some time to- Faolán! Stop!" It took Atrocius a good ten minutes to recover from the effects of the Patronus charm, during which time the werewolf kept pestering him. When he could finally stand on his legs again, the boy went to his backpack and produced an oversized Hufflepuff robe from it. "All right, buddy... The sun is about to rise soon, so let's get you dressed. Believe me, you will thank me in the morning." As the young Slytherin, tried to approach the werewolf, it jumped back, then left, then right, and then ran a lap around him in an almost playful manner. "Hey, I'm not gonna play catch with you, this is for your own good!" Said Atrocius, desperately trying to catch up to the werewolf. "Hey, Faolán, get back here! I'm not playing around, buddy! Faolán!"
The morning finally came. Faolán once again woke up on the outskirts of the Forbidden Forest, but this time he wasn't naked. He was wearing a Hufflepuff robe, which was weird... The last thing he remembers is running into the forest, and then... Then... Why does this robe smell like garlic?! 
"Ah, you're finally awake!" came a familiar voice from behind, the voice, of course, belonged to Atrocius. Before Faolán could have said anything, he continued. "I was wrong about you... About you being a werewolf." 
"What makes you say that, all of a sudden?" asked the black haired boy in return.
"Well..." Atrocius rubbed the back of his neck. "Werewolves don't come back for someone who is in trouble... You did..." 
"You said before that you wanted to help. I assume this robe is your doing?"
"Yes, yes it is, although, you gave me a good run for my money. But... Never mind that...That's not the help I want to offer... It's this..." said Atrocius, producing a flask from his backpack. "This is my own concoction. I call it Fool's Bane Potion; its main purpose is healing wounds and cleansing poison from the body, but it has other uses too, like curing confusion. Meanwhile, it won't cure your condition, and I'm afraid it won't help you retain your consciousness either, it will stop you from attacking those you wouldn't in your sane state, and it would help your worse half tell the difference between friend and foe." He took a deep breath and then continued. "The decision, whether you want it or not, is of course yours... But if you ever decide to put those fangs and claws of yours to good use during the full moon, I'd be more than happy to clear a few poacher camps on the side of a friend..."