(Few things to note, for harem members, ya'll need to calm down. Some people added like sixteen people from just Harry potter. Pick one or two, stick with it. Those who are voted the most or liked the most will get added. This is a multi-verse fic. I am not aiming to have the largest harem on Webnovel, not in this fic at least, though I pray to the person who is trying their best to do such a feat.)
(Secondly, some are displeased about either coddling the trio or even saying I shouldn't spend too long per year, since it's a fanfic people don't want to be trapped in one world for too long, all I got to say is tough shit. I plan to take my time here, and whereas I might not explore the 'Canon' that much, I will explore the world.)
(Also, for the sake of my own head, and the fact I am not a 'Huge' HP fan, I won't be remembering all spells that I need to use, I already somewhat clarified it's a will and hold over magic instead of a word or fancy wand-waving... Though there will still be fancy wand waving.)
So, when he decided, and the prefects were told to lead their houses to the dormitories, which now that he thought about it, wasn't that stupid? The great hall was the most well-defended place at that time. Not only all the teachers but most all staff, all the students from each grade were there, including his Grandfather.
1-5 years may be a bit useless, but 6-7 years would be able to defend themselves at least against a troll.
Especially for the Slytherin, their house was located in the dungeons that the troll was supposedly in.
For now, Jack waved it off and simply placed a chantless and wandless notice me not charm while also suppressing the sound, and any odor that came from him. With this he slipped away with ease, a few noticed his absence, including his Grandfather, but only a small smile played on his lips, he then moved to a secret passage that leads to his office, he would need to discuss with the portraits to help find the beast while the teachers began to move through the castle.
Making his way to where he knew the troll would be he made sure the coast was clear before checking the bathroom, he heard the scream and he could see none other than Harry and Weasly both running around a corner, Jack moved and dropped his magic and drew his cane with ease.
Running after them he heard Ron mutter 'Bloody hell.' once he noticed the troll, spinning into the bathroom as it was about to smash through the wooden walls to the toilet, with a flick of his cane he caught the wooden club in the air, the Trolls confusion was easily enough time to empower the spell through mana and will before it slammed into the troll, knocking him off his feet and down the large bathroom and into the wall, the castle shaking gentle around him. Another flick and the club slammed once more into the large troll's head before in quick succession severing charms left his wand, it took a few, but soon the troll's head came off.
All three of them were wildly gabbing at Jack as he with a wave of his wand had the door opening to the stall Hermione was prone in and he pulled her up, strangely enough, the teachers appeared this time much faster, though behind them was Dumbledore with a twinkle in his eyes and stroking his beard, of course, he knew Jack would be at the scene, his parents weren't much better with finding themselves into such trouble.
McGonagall turned into the bathroom to see the beheaded troll and she gasped, a hand over her heart as she steadied herself. Turning to the four of them her shakey hand waved at them, some might confuse it for scolding, but there was genuine fear in her eyes and worry in her voice as she spoke. ''You four! You better start explaining yourself!''
Hermione seemed ready to speak up, but Jack did so first.
''I am sorry Professor, as you may know, I consider these three my friends, so when I first heard of the troll I got worried, I hadn't seen Hermione at dinner so I assumed she was studying and simply grabbed some food from the kitchen, but when I saw Harry and Ron take off I knew something was wrong so I chased after them. I caught up to both of them and they quickly explained that something had upset her earlier and last they heard she was in a bathroom, and since their close friends they decided to search for her to ensure she was safe. Right after we heard her scream, coming in to see the troll."
Jack took a breath, but anger filled his voice, and the air around him seemed to hum with magic, his magic responding to his emotions. "Seeing her knocked prone I feared the worst, in my anger, I took its club and hit it with it, I am not sure how but the magic I used was strong enough to toss him, once he hit the wall I began to throw severing charms until I removed his head."
Seeing the familiar hum of magic around Jack, Dumbledore stepped forward, a gentle hand resting onto his shoulder to soothe him, which seemed to work as the magic calmed down, Ron and Harry both seemed happy that Jacob covered for them, and Hermione thinking that he was angry because he thought she was harmed made her cheeks warm.
After that things happened pretty much like canon, Snape noticed both Jack and Harry seen their gaze on his wounded leg, Snape waving his robe over it to not worry the children, however, it had an adverse effect. Making Harry suspicious of him. Once they were all sent to the medical wing to get checked out, they gathered their beds close with the nurse's permission so they could talk.
"That was bloody wicked Jack! I didn't know you were that strong!''
Harry nodded fast. ''What was that severing charm you said you used, isn't it pretty dangerous?''
Hermione spoke as well, less excited as the events that had happened seemed to be finally catching up with her, her crying and exhaustion catching up. ''Thank you Jack, I don't like to think what might have happened if you hadn't appeared.''
Jack shook his head with a chuckle. ''Thank you Ron, and yes I am strong, others might wait until 11 when they get their wands to practice, but I had time while I was growing up to study theory, lore, and all the basics behind things. Even without a wand, and with Dumbledore's personal help, I was able to get Chantless magic down."
"Harry, what you need to understand is whereas there is beauty in magic, there is also darkness. Any magic, used with the intent to do so, can be used to harm. A simple flame jinx could start a forest fire, it is about the feeling, intent, and amount of mana you put into it that changes such things. In my anger, I fueled a spell used for opening letters, into a strength capable of cutting through the tough hide of the troll."
Harry and Ron seemed to have been taken for a spin, leaning back in their pillows to think about this, Hermione seemed interested but she was tired.
''And you, Hermione don't need to thank me, but what you do need. Is if you three will always be sprinting into trouble like that, is training. From now on you will join me for my morning exercises and practices. Just head to the Great hall at 7 in the morning, which gives us two hours for work out and practice before we need to freshen up, eat then start attending classes.
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