Hi so I'm new to the shadowhunters world and I've really started to enjoy the show. I've never read any of the books or seen the movie so they're characters might be a little different. This is a high school alternate universe story so I hope you guys enjoy. Most of the shadowhunters cast will be in this story.

...

Hardwick Hill High school

It was Monday morning and Magnus sat nervously in his car. He's been in Hardwick Mane for only a week and today was officially his first day of school. Even though the school year had just begun he was still nervous. Grabbing his book bag he got out and headed inside. He already had his schedule so he searched for his first period class. After nearly five minutes he stopped and leans against the wall.

"You look lost."

Magnus turned to where the voice came from. "Yeah a little."

"Here let me see your schedule." She looked over the schedule once he gave it to her. "I'm Isabelle by the way, my friends call me Izzy."

"Magnus." He replied.

"Come with me, I'll show you where your classes are." After showing him around she walked him back to first period class. "Well it was nice meeting you but I better get going."

"Thanks." Magnus watched her go then headed into the classroom. There was only two others there so he just sat in the front. Feeling his phone vibrating he pulled it out, it was a text from his mother asking if everything was okay. Smiling to himself he text her back and looked up when someone cleared their throats.

"You know that no phones are permitted to be out in my classroom." She says.

Magnus quickly put it away. "Sorry."

"My name is Maryse Lightwood, welcome to my class. I got your transcripts from your previous school. You excelled in every single class, I expect a lot from you." She looked at her watch just as the bell rang and the last of her students entered the classroom. She went over to close the door when two more students appeared, she frowned. "Alexander, you of all people know better then to be late for class."

"Sorry." Alec says. "It's all Jace's fought."

"If course it was, take your seat and see me after class." After Alec came in and she closed the door.

"Class we have a new student joining us today, Magnus Bane." Maryse says. "I expect you to treat him with respect is that clear?"

"Yes Mrs. Lightwood." The class says in unison.

Alec headed to his normal seat in the back but someone caught his eye, someone's he's never seen before. Their eyes locked briefly and he felt something in his stomach flutter. Looking away he headed to the back and sat down, his eyes drifting back to the dark haired mystery that sat in the front. He couldn't seem to focus the rest of the period. When the bell finally he stayed behind as the others left. Gathering his stuff he headed up front where his mother sat going through papers. "Mom I told you that this is all Jace's fault."

"I didn't want to talk about Jace." Maryse says. "Magnus is joining us from a private school and I want you to show him around here since it's his first day."

"Sure, I can do that." Alec says.

"Good, now run along before you're late for another class." Maryse went back to her papers.

Alec nodded and left the classroom, he started looking for his friends when he saw the mysterious Magnus standing in front of a row of lockers. He couldn't help but notice the confused look on his face. Sighing he made his way over to him. "Need some help with that?"

Magnus quickly turned and saw the brown eyed not from before. "Um...I Um...I'm not sure how to open this locker. They gave me the combo but it won't open."

"Here let me show you." Alec says. "First you turn the dial three full turns to the right and then to the first number. Then, turn the dial left one full turn and keep going until you reach the second number of your combination. Then turn the dial once again to the right to the third number. Then pull on the lock, and it should open." When it did he stepped back.

"Thanks, we never used lockers at my old school." Magnus says. "We always had to carry everything around."

"That sucks." Alec says. "I'm Alexander but everybody calls me Alec."

Magnus smiled. "Nice to meet you."

"You too." Alec shifted on his feet but jumped When someone yelled out his name. Looking down the hall he saw Jace running over to him.

"Where the hell have you been man!" Jace yelled. "I've been calling your phone."

"Mom took it." Alec says. "Jace this is Magnus, Magnus this is Jace."

"Are you two brothers?"" Magnus asked.

"No but we grew up together, he's like my best friend." Alec looked between the two.

"Come on dude let's go." Jace says grabbing his shirt.

"Are you going to be okay getting to second period?" Alec asked.

Magnus nodded. "Yeah thanks...Alexander."

Alec was about to correct him but the words he formed got stuck in his throat and he simply nodded before Jace pulled him away. "Dude what the hell." He says pulling his arm free.

"Clary scored you a date with head cheerleader Lydia Bradwell." Jace says. Alec frowned and so did he when he noticed. "What?"

"Nothing." Alec says looking away, truth was he wasn't interested.

...

Third period, Chemistry

Alec was making his way to class when the warning bell sounded. When he stepped inside he saw that all the tables were full, all but one in the front of the class where Magnus sat quietly. Looking around he walked over to him. "Hey, is it okay if I sit with you?"

"Sure." Magnus moved his book bag to the floor next to him and went back to his book. With the other teen so close to him he found it hard to concentrate. Trying to steal a glace he turned his head only to find the brown eyed teen watching him as well. He opened his mouth to speak but the teacher walked in.

"Hello class." He noticed the new face sitting in the front row and smiled. "You must be Magnus Bane, I've heard some exceptional things about you. You'll fit in my class just fine, in fact you'll fit well with Mr. Lightwood for the first project of the school year."

The class groaned and he laughed. "I'm glad that you're excited, as for the rest of you I'll pair you up later. Mr. Lightwood...why don't you get Mr. Bane up to speed."

Alec nodded and turned his head. "Is this okay with you?"

"Yeah." Replied Magnus.

...

Okay like I said this is my first dab at shadowhunters and its an AU. Sorry for how short it is but I still hope you like it. So far I think mostly all the characters will be in this story.