AN/: Okay, so I've never actually told you how i came up with the idea for 'Marceline being a hero'. Well i was reading an Elsanna fanfic (A heroes frozen heart) and i realized that no one had done a bubbline where Marceline was a hero in the modern universe and what not so i thought 'well it seems pretty cool and im totally gonna get a lot of reads because HELLO BUBBLINE?' and well...yeah.

Marceline trudged down an empty hallway while spinning a set of keys around on her finger. As she stopped outside the Music store-room she took a glance to her right and unlocked it. Reaching in she grabbed her acoustic guitar she had hidden inside and slung it onto her shoulder.

"What's up freak?" The tall girl froze and closed the door, only to show Elle leaning against the wall.

"We know its you." Another voice said from around the corner.

"W-What do you mean?"

"We know you're the wanna be hero." She spat, pushing Marceline into the wall and grinding her teeth together.

"I don't know what you're talking about im no-" She tried only to be cut off by Elle.

"Shut up!" Marceline didn't know what happened next; one minute she was against the wall, the next she was sprawled across the floor while her nose throbbed. "Fight back!" Elle screeched as she began kicking her stomach.

"S-S-Stop!" Marceline gripped hold of Elles ankle before five more pairs of feet joined.

Looking up she saw The headteacher, Her music teacher, Two more teachers and Bonnibel. Elle quickly flicked her heel into Marceline hand and stomped on it, earning a roar of pain.

"Elle Sarah-Peters! Stop this now!" The head roared. Elle only put more pressure onto the girls palm.

Marceline couldn't take it any more as she let the tears escape her eyes and pour down her cheeks. Her hand tried to grip on Elles shoe, making her hand hurt even more. Finally, the pressure was taken away when one of the unknown teachers dragged the girl away.

Her hand had a large deep wound in it which would no doubt turn into a scar. Clenching her hands into fist she pushed herself up and saw the crowd of students in the corner of her eye. Seeing no other way out of it she ran out of school all the way onto her street where she slowed down to a slow jog

"Stupid school girls." she muttered when she finally got inside, heading straight upstairs and into her room.

She tore one of her old black shirts partly in anger and partly for stress release. With the newly acquired piece of cloth Marceline wrapped it around her wounded hand and took her hoodie off.

"I'm not a hero..." scrolling down her Tumblr page something caught her eye. It was a pair of black and red running shoes and a pretty awesome assassins creed style jacket without the weird tails on the back. when she saw that the hood also served as a ninja type mask she clicked on the website link without hesitation and bought them.

"Marceline, your teachers on the phone!" She cursed under her breath and chose to ignore him by scrolling down her dashboard again. "She says you were in a fight again!"

She never started the fights any way.

First time for everything right?

As soon as she got the new shoes and hoodie Marceline added them to the rest of her 'Outfit'. Along with her skinnie jeans there were also a pair of padded gloves with extra grip and some knee caps to wear under her jeans. If your going to become a hero you've got to do it right, right?

"Simon, im going out!" She called as she quickly put on her trainers and zipped up the mask/hoodie before hastily running out the door so Simon didn't see her.

She began walking towards the alley in which the entire thing started, she kinda owed it to the two guys that she was doing...whatever it was she was doing.

She looked up at the wall and spotted a pipe wich looked pretty sturdy. Placing her already shaking hands on top of it she put her foot on a brick which was jutting out a bit.

"Come on marceline...you can do this..its just climbing right?" And so she began to pull herself up the wall, mentally screaming at herself to not look down.

It surprised her when she got to the top of the pipe and there was no more. Looking up she saw that she was around half way up the building. Noticing a giant Vent to the left of her she clambered on to it and carried on climbing the next set of pipes.

She was breathing heavily as she crawled onto the roof and collapsed on her back.

"Why..did i choose...to do this..?" Just as she closed her eyes the sound of sirens reached her ears. "It was rhetorical!" She half shouted and half hissed.

For the second time that week she found herself on the ledge, both for entirely different reasons. Nervously watching the cars zoom pass Marceline looked at the row of rooftops.

She took a step back and adjusted her gloves so they weren't loose.

"Here we go." Then she was running and jumping across the buildings, grinning every time her arms automatically lifted up when she left the ground.

The cars stopped at another alley and she crouched near a steel ladder that stretched from the ground to the top, where she was.

"You take the drugs dude!"

"No, you take the drugs!" Marceline smirked at their panicked voices before realizing that the police were trying to get into the alley without raising the dealers alarm.

She slid down the ladder and jumped off at the end, landing like a proper hero should.

"I-Its her, the one who got the other two." One of them said.

"So glad your familiar with me." She said sarcastically.

"We'll take care of you." Marceline froze when she saw the shorter guy pull out a gun. Luckily for her he was close enough for her to disarm him. Just as he pulled the trigger she kicked his wrist and the shot fired at the wall, making the police began scrambling around on the other side, trying to see who it was in the shadows.

Then, there was a sharp pain in her side and the sound of something falling to the ground reached her ears. She turned around and slammed her hand into the other mans head, making him fall to the ground in agony.

"Take this bitch!" A hand pulled her around as a sharp, jagged rock collided with her temple.

"Put your hands up!" Still dizzy Marceline grabbed the guy and slammed his face into her knee letting him slump down to the floor before she ran towards the end of the alley where she spotted a metal fence.

Not bothering to jump over it she shielded her face with her hands and ran straight through it, feeling another cutting pain on her jaw.

She ran all the way back to her house and collapsed in front of the garage. She hadn't even noticed it had started raining until her backside was soaked.