A.N: Someone asked where this story was heading so I thought to give a small brief. It's mainly going to deal with Marceline and Finn and their sudden destruction of friendship. Not too much romance, you just witnessed probably the majority of it. There isn't any FinnxMarceline, sorry the tags must of confused people. And I'm actually more of a fan of FinnxMarceline myself but I just can't think of a story for them too.

There is going to be quite a bit of action as well so if you aren't into that sort of thing then you probably shouldn't read. Oh and Finn is going to turn dark.

Probably should of mentioned that in the summary. Anyhow, enjoy.

Oh crud.

Finn.

How could she forget about him? Oh glob, he sent her here so she can get closer to Bonnibel. Not so she can reunite old love with her! What is he going to think? She betrayed him, she's sure of that. She knew he liked Bonnie a lot and then she just goes right ahead and steals her. Maybe she can go back against her word. She looks up at Bonnie, mouth open to sp- "I can't do it! Look at her! She's so lumping good and she's MINE!"

So ending it with her and getting her to like Finn was off the list of things. But what is she going to do? She didn't want to lose Finn. She doesn't actually think he's a total dweeb but a real cool friend and she didn't want to lose that. Gargh she sucks at emotions!

"Marceline, are you okay? You haven't spoken in a bit and you're pale…well paler than usual." Bonnie giggled at her little joke, not taking any real notice of the internal conflict which her now girlfriend was going through. Who could blame her? She was emotionally unattached as a stick sometimes.

"I just *sigh*, it's Finn. He likes you Bonnie, a lot and I was here to like, make him seem like he was not a total weenie."

"But why? I know he isn't a total weenie but the courageous hero of Ooo who has saved me and my kingdom's butt so many times." Bonnie stated, giving off the damsel in distress sort of vibe which brought little aches of jealousy through Marceline "Why can't I be her hero?" She shook off the creeping thoughts of doubt in her head and did a dramatic sigh.

"Glob you're so stupid. Finn likes you Bonnie and he wants to seem better for you since you keep blowing him off. And now instead of that, I've gone and snapped you out of his reach! What will he think of me?" Marceline ran her hand through her hair irritably, trapped in a situation which she can't get out of. Bonnie just smiled at the vampire, took two steps and kissed her on the cheek. Marceline blushed madly and touched where she kissed.

"W-wah?! What the heck Bonnie," she took a step back "why'd you do that?"

"Because Marceline, you're also so stupid sometimes. It's Finn. Just explain it to him and his kind heart will forgive you surely. He is Ooo's hero after all." The princess smiled reassuringly at the shocked vampire, placing a hand upon her shoulder,

"Go, go talk to him Marceline. Everything will be fine." She then promptly delivered another kiss on Marceline's cheekwhich the vampire took more gracefully this time…barely. The Queen of Darkness looked up at her girlfriend with fear and desperation in her eyes. But seeing that steady strength in Bonnie renewed her confidence once more.

"Yeah, you're right Bonnie. It's the little weenie that we all know and love. Heh, what the worse can happen?" Famous last words. Marceline hugged Bonnie sort of awkwardly but it was warming for the both of them none the less. She then flew off and gave a farewell wave to her princess and flew towards her house where Finn was planning to meet up with her. The night was colder, more biting to Marceline than usual and she was the lumping Queen of Darkness! She looked up at the full moon and reminded herself of Bonnie and just what happened. It seemed so unreal but yet, she was sure it happened.

"Haha alright! Bonnie is back with me!" Marceline wooped, doing spins in the air as she could not contain her happiness. It has been such a long time since she felt so globbing good and she didn't care if anyone saw her. Well, all except Finn. That thought quickly sobered her up and she flew to her house sluggishly, dreading what she had to do.

"Okay, okay. So eh, hey Finn! How is it going. I've got some bad news…no, no, no. Hey dweeb, Bonnie is all mine now! No that's even worse! How the heck am I supposed to talk to him. Sigh do I have to apologize and stuff? Totally will ruin my rep but…he's my friend. My best friend. He deserves the truth. Nothing sugar coated (heh sugar coated). I'm sure if I told him my feelings…he'd understand. I hope."

She could see her cave now, coming closer and closer. Cold beads of sweat went down her neck and she gulped back her anxiety "Maybe I can swing around back, hide out for a couple of days and maybe he'd forget?" This small glimmer of hope disappeared as she saw the young human boy at the mouth of the cave, waving hysterically at her,

"Hey! Hey Marceline! Over here! What did she say? Hey Marceline!" Shouted Finn, now jumping up and down in anticipation and excitement "Hooo boy, this is gonna be tough." She landed next to the boy who was now jumping up and down so much that Marceline had to put a hand on his head and push him down to make him stop. A smirk came across her face "Or maybe not",

"Heh come on weenie, we'll get inside and talk there."

"But Marceline!" Whined Finn like a 5 year old child and the Vampire Queen simply rolled her eyes.

"Get inside dweeb or I'll make ya!" Her face contorted into pure horror, razor sharp teeth and blood red eyes hissed in Finn's face. The boy hero was unfazed by the face which sprung fear into millions of people over the years and ran to the door excitedly. He opened it quickly and waved Marceline in hurriedly, overly nervous for the news. Marceline felt sorry for him and a pang of guilt ran through her body "Oh you poor, lonely boy". She stepped inside her home and took a profile of the him.

He was around 14 and the world was harsh on him although he wouldn't complain. His face was filled with boyish charm, a large uneasy grin across his face with bright blue eyes and cheeks which still had traces of baby fat. Small tuffs of golden blonde hair sprang from his white bear hat and it was fairly wavy. The boy was wiry, his arms skinny but taut with muscles. Hence why he was able to wave a sword around as if it were a pencil. His shoulders were beginning to broaden but only slightly. His body, like his arms were skinny and she couldn't tell if his body contained any fat or not. His legs were chicken legs, with a layer of fat covering them. He was only a little over 5'6. Jeez he was a wonderful kid. He wore what he usually wore, blue shirt and deeper blue shorts with his trusty backpack and a sword which was sheathed behind his back.

"So Marceline, what she say? Does she like me because that would be like totally rad but if she didn't that would be cool. Did you make me out like heroic and stuff who is like super smart and mature? Or, or…" Finn projectile vomited words like that for the next minute, each sentence bringing more anxiety and dread to the Vampire Queen. She finally raised her hand to stop Finn talking who suddenly halted midway of saying "Did you mention my pink tuff of her hai-"

"Eh Finn, I've got something to tell you." The boy looked up at her, eyes glimmering with hope and nervousness. He looked so innocent and pure and she was going to crush him "But he deserves the truth, oh glob, he deserves it so much."

"Well eh you see Finn, me and eh Marceline had a bit of a past you know. And eh I went up to her and stuff and we sort of argued and things. And then we were, you know very close and we talked some more and thenwegotbacktogetherandImve rysorryforbetrayingyou!" She said the last part in a rush, however the human boy was used to rushed explanations from his brother and picked up every word of it.

"You…what?!" The boy took a step back from the vampire queen, horrified from what he was hearing. He bent down and grasped his head "No, no this can't be happening!"

"Oh glob, why am I so lumping stupid. He's breaking apart." Guilt and pity that was so powerful came after wave after wave through Marceline, almost driving her to her knees.

"I'm so sorry Finn. I know how much you liked her and everything but when I saw her it made my heart guts throb and I just had to have her to myself. I'm so selfish and I'm sorry for hurting you so lumping much but you have to believe me it wasn't out of spite!" She begged, trying to knock some sense into the boy who tore his hat into two, letting his blonde hair fall onto his shoulders.

"How could you do this to me Marceline?! You knew I liked her a lot and you just went ahead and handed my guts on a platter to me. And…and how could PB do this to me? She must of known I had feelings for her…I worked so hard for her and this is how she repays me?!" The boy screamed, never feeling so alone and betrayed as he has now. This turned into fury and the kicked over the hard-as-steel couch over and screamed.

Marceline could see it all now in her mind's eye. What was going to happen because of her mistake. She saw Finn, the hero of Ooo, broken and destroyed because of his betrayal by his love and one of his best friends. She could see that he becomes so wrapped up by it, all he can seek is revenge on those who had forsaken him. He became the villain of Ooo, no longer protecting the weak and allowing predators and him to torment the ones he once protected. She saw him, advancing on Princess Bubblegum in broad daylight where she couldn't help her, sword in hand ready to strike down the one who caused him such pain. Then she saw the despair across his own face as he realised he had done a terrible mistake and took out his self-hatred on the rest of Ooo.

She couldn't allow that to happen. She knew what happened when you messed with a human heart, the sheer destruction it could wrought upon a world. It happened once…over a thousand years ago. She had to rectify her mistake, to stop the creation of a monster that would rip Ooo apart.

A monster…?

The idea hit her like a punch. She knew what she could do. It could save Ooo but it would indeed destroy her friendship with the human boy. She looked up at Finn, who was staring angrily at her with hatred oozing out of his body "Well, not much to lose anymore". She hoped to glob it would work. She bent down and let the most evil cackle she could muster to wrack her body,

"Hahahaha oh Finn you insolent human. All of it is a lie. I can't contain it anymore; it's so hilarious seeing you like that. Yes, I enthralled Princess Bubblegum and made her my slave so she can do as I bid. She is mine and you can never have her!" She swiped the air, giving her most inhuman smile to the boy who just stared at her with shock. He slowly snapped out of it and a snarl went across his face and hope came into his eyes,

"How could you Marceline! How could betray me like this and hurt PB!? What made you do this huh?! You were totally a rad dame and then you betrayed us all! You betrayed me!" The boy screamed in hatred and pain, hot angry tears pouring down his face. "Oh Finn…I'm going to miss you" sadness came across Marceline's face for a second before she quickly renewed her act.

"Because I was bored Finny boy! There was too much peace and happiness and I needed some fun. And behold," she gestured to Finn with a swoop of her hand "my fun. Always coming to me, needing help with his love life. Always sharing me his secrets and what's closest to him. So I thought to play a bit of a trick to create drama and terror." She cackled evily again, leaving Finn fuming and crying on the spot "I'm sorry Finn".

He wiped the tears angrily from his eyes and took a deep breath in. He then glared at Marceline with raw pain and hatred and he bellowed "Marceline! For the Land of Ooo and for betraying your friends…" he grasped the handle of his sword. "Oh no, no, no oh glob Finn NO!" Marceline screamed in her mind, wishing she hadn't said anything.

"I will destroy you so that Princess Bubblegum will be released from her curse…and so she can be rightfully with me." The horrible sound of rasping steel came forth as he unsheathed his weapon and held it out before him, his snarl disgusting and promised only pain. "This isn't supposed to happen, no! You were supposed to try and reason with me, oh glob Finn don't!"

He let out a battle roar filled with the promise of death and he leapt forward, swinging his sword down with all his might. Marceline managed to barely dodge the attack which would have split her down the middle if she didn't side stepped.

"Oh Finn, what have I done?"

A.N: Okay the next chapter is going to be quite actiony, so don't watch if you don't like. I hope you enjoyed this chapter and I'm sure to write another one (probably not at the same speed though). Anyway, thank you for reading.