Author's comments at the bottom. If you don't like how the story moves, tell me why and how you think I could do better. :D

Finn stood at the top of his tree-house, quietly looking out of the circular window that was carved through trunk. His face was cold against the wind and yet it he stood unwavering as it hit him, and through this mild chill he softly gazed upon the setting of the golden orange sun. The dimming yet beautiful rays revealed the mellow plains and the distant treeline that flanked them like opposing armies. In the midst of these wooden armies, the strip of grassland where the treehouse stood, was remarkably free of any harsh elements, giving them plenty of time to spot an approaching villain. This sparked a thought within Finn about how the tree-house was separated from the rest of its kind, and how he was similar to this tree. His home was the only tree that was actually in the grassland. Sure, there were a few errant shrubs and bushes, but this was the only tree.

"And I'm the only human in Ooo," thought Finn, who had now shifted his gaze to his feet.

The light outside was subsiding swiftly enough, and the darkness encroached upon their home with indifference as it enveloped the whole of Ooo. And when the late had faded, the coolness of the air washed over him with renewed vigor. These summer's evenings were one of the things Finn had come to like best about life. With a quiet yet longing inhale of breath, Finn looked up from his stupor and reached for the window clasp. But, before he could close it, he heard a yelp in the distance. It was faint, but he did hear something. Unknowing if it was an animal or a person, he listened again, closely this time. He waited for what seemed like a full minute, and nothing came to his ears besides the passing breeze and the now chirping of the bugs. With a questioning expression, Finn decided it was best to ignore it, and shut the window. Surely it was just an animal.

The next morning, Finn awoke to a grey sky's light through the window, and what took him a moment to realize was the sweet smell of breakfast. "Pancakes," he thought aloud. This alone was enough to have the fifteen year-old scramble out of his bed. While almost tripping over himself in the onesie pajamas he still wears, he managed to make it downstairs without breaking anything, himself included. Jake stared at him with a look that revealed he was used to Finn's energy. "Hah! I knew this would get your butt out of bed!," he said with a cheek to cheek grin.

"Man, of course your pancakes would wake me up. They're like one of my favorite food groups."

"Uuh.. I'm pretty sure pancakes aren't a food group, Finn. They might be -in- a food group, though."

"Whatever, as long as I get to shovel them down my facehole," Finn's eyes were fixated on the stove Jake stood next to, a mountain of large and browned pancakes sat next to him on a plate. "Go ahead and dig in bro, I'm almost done here. Just gotta throw this skillet in the sink."

Not needing to be told twice, Finn got a plate and fork from the kitchen and stacked a couple pancakes on it. The steam and the smell wafted to his nose like the sweet nothings of a lover to his ear. Finn rushed to sit down and enjoy his meal. As he did so, the sound of rain began to permeate the wood of the tree-house, and lightning voiced itself as thunder as it began to dance throughout the sky. Not too long after the rain had started, Finn had finished. His plate was empty but his stomach was groaned in fullness. He got up to place his plate in the sink, when he heard a scream that seemed to curdle his blood.

Startled, he dropped his plate with a crash as pieces of glass dispersed, but he was to the door before that. Bursting it open, he was immediately pummeled by the large berth of the raindrops. It didn't phase him, he'd already resigned himself to locating the source of the scream. He scanned the horizon as well as he could through the onslaught of the storm. He noticed that, oddly, there wasn't much wind to go along with this rain. Usually thunderstorms and ferocious winds are inseparable. With no one in sight, he moved around the perimeter of his home, staying close to it so as to not attract the wrath of a stray bolt of lightning. Just when he was about to give up, thinking whoever made the scream had already moved on or had been claimed by an attacker, he saw Jake's yellow fur in the distance-and he was three-times his normal size.

Moving with as much speed his legs would lend him, Finn rushed to the scene where he saw there were two more people: someone dressed in a hooded black coat, and the other was, for some reason, laying face down in the dirt. The person on the ground had very pale skin and light blonde hair, almost white. "Jake! What's going on?" Finn yelled in a confused tone.

"This meat head was trying to hurt this guy. He had some stone in his hand and was muttering some crazy words." Jake replied, not taking his eyes off the stranger.

Finn's face contorted in a quizzical way, "What'd you do to him?"

The man stood, arms down to his sides and his face still concealed by the black cloak. By now the storm was really starting to rage on, the absent wind finally had arisen from its slumber. For a few seconds, nothing happened but an exchange of stares between the group, but then Finn, having decided he'd waited long enough, sprang into action. He was still dressed in his onesie, and he didn't have his sword, but he thought he could at least wrestle him to the ground and force him to talk. About halfway to the hooded figure, Finn saw him lift his arms. Right as he did that, the wind died off again. It was too late for Finn to slow down now, he was already in mid-leap.

In nothing more than an instant, the man had summoned forth a small cyclone that intercepted Finn. To Finn, hitting the end of a cyclone with his head felt close to slamming into a brick wall that was also trying to suck off his face. Finn, who was now seeing stars, was flung a good distance backward. He had cleared Jake and then finally came to a muddy stop after making a large splash. If the mud hadn't cushioned him, it would've hurt a lot worse. Finn's head was spinning, but from what he could tell from the ground was that Jake had moved in to attack the guy right as he'd been slammed by a globbin face tornado of all things. It seemed to Finn that this hooded figure's power of air wasn't a match for Jake's stretchiness. Jake stretched over him and engulfed the man with his hide until the bursts of wind had finally come to a halt. Finn, still laying on the ground and reeling from the stars in his eyes, turned his head to get a good look at his mud buddy. He didn't recognize anything about him save for one thing: he had the bite of a vampire on his neck.

The villain Jake had subdued lay in the mud face down with his cloak still covering his head. The rain finally began to subside when Jake glanced over at Finn, who was only just now beginning to stir, and then looked backed at this stranger. Slowly, with outstretched arms, he lowered the cloak's hood, revealing a species with tan and scaly skin. Jake had never seen a kind like this one before. "Well thats just wonderful. Now, how was he doing all that weird wind magic." A quick search through the lizard-kin's cloak revealed no magical object besides the dimly glowing, red stone-so Jake surmised it was either a spell, or it was this strange object that had produced such power. Finn approached the lizard, not taking his eyes off it for a second. Not fully understanding what was happening, Finn voiced, "This is just too weird Jake."

hr/hr

"Marceline! Hey, Marceline!" shouted Finn. He stood outside the front door of her house, the house itself being inside a dank, dark, cave. He waited a few seconds before walking up to her door. He wanted her to come out, but he'll go in and get her if he needs too. A comatose vampire shows up not even one-hundred feet from his treehouse? That needs some explaining.

Finn knocks on the door as a final means of saying, "Hey, we need to talk." Having still not come out, Finn tries the door, which is strangely unlocked. He supposes that wouldn't be very strange. She's a vampire, and this is a cave. Who would try to steal from her in this place let alone knew she lived here? Trudging forward, Finn steps into the living room of her house. The lights were off except for what seemed to be glowing mushrooms in pots around her home. Right about now he'd wish Jake were here, but he opted to stay home and guard the guy instead of bringing him along. He has enough problems with vampires as it is, and worrying about two at once is a bit much for Jake.

"Hey Marceline, you home?" Finn shouted throughout the house. Still nothing had called back. "Maybe she's really not here," he surmised. Deciding it would be best to make sure, he went up the ladder and to her bedroom. Knocking on the door to the bedroom, it creaked open. Finn, being the nosy kid he is, slips his head through the now wide crack in the doorway.

Dark.

No light at all. Finn stepped into the room and found the light switch. The only thing in the room that looked out of place to Finn was the messy bed. "Yep, not home."

Finn, having come to a conclusion, flipped the switch and turned around. Only, when he went to walk through the door, he smacked into something. Someone, actually. They were large and built like a wall. Now that the lights were out, he couldn't see who it was.

"I thought you said no one would be here!" yelled the giant.

"No one but the vampire." A calm voice broke free of the blackness. The silhouette of the person stepped past the hulk, "And this boy must be it."

Finn was initially standing, and before he could piece together the situation, a familiar blast of wind shot from the creature's arm and slammed him into the back wall.

"Well that hurt.." Finn groaned as his knees slid to the floor. The man stepped forward and removed something from his sleeve that gave off a faint aura of red light. The room was so dark, it seemed as if the whole world had disappeared except for this object. He stared at it, dazed and mesmerized, and then he realized what he was looking at. It was a stone just like the other lizard-kin had held earlier.

"Oh this is really not go-", was all he could say. Finn was suddenly blasted by a bright red beam that emanated from the stone. He could hear the man chanting something, and each and every word he spoke seemed to make Finn lethargic. He could feel something being pulled from him, but he didn't know what. All Finn knew, was that he was starting to feel very, very sleepy. Before he even knew it, Finn had passed out.

"What the glob are you doing to him?!" Marceline roared from behind the giant.

"Huh?" the giant groaned.

"So there is another one after all…" his loud voice bellowed.

"Well don't just stand there, grab her!" Yelled the lizard-kin. "Okay.." the giant spoke in a low, almost bored, voice. He turned and made a large sweeping motion with his arms, bringing them towards his chest, but all he managed to capture was air. Marceline had already swiftly moved passed the giant and knocked the lizard-kin off his feet by slamming into him. Before the lizard could get off the ground, Marceline put Finn's arm around her neck and picked him up. Now carrying Finn, she flew by the lizard and the giant who was now rushing towards her, but leaving the doorway unguarded. Marceline could hear the faint shout of "You idiot!" as she made her way down the ladder, back to her living room. "What'd they do to you, Finn?" Marceline cooed.

"I have to find Jake!"

If there was ever a time when Marceline was glad it was a cloudy day, that time would be now. Moving at full speed, she flew as fast as she could toward the direction of Finn and Jake's tree-house. Now, being a vampire, Marceline can sense the life energy of all things through their blood, and while Finn wasn't bleeding visually, for some reason his body was exuding his strength as if all his life energy had been forced to flow outward. She could feel this, and the fact that she could feel this without tasting or smelling his blood made her worry all that much more. "Only a few more minutes, hold on Finn." Marceline muttered, soaring the air. She hadn't even realized there were tears on her face yet.

"Marceline, there you- OH MY GLOB" shouted Jake. "What'd you do to Finn?!"

"I didn't do anything! Some guys broke into my house while I was away and they were doing something to him when I got there." Marceline was gasping for breath, all that fast flying did a number on her. "I don't know what they did but I can feel him dying."

"What do you mean you can feel him dying? What kind of globbin thing to say is that!" Jake was exhaling all his air before he could finish his words. He grew to twice his normal size and stretched out his arms to grasp Finn and lay him down on the couch.

"I don't know! They had some kind of crystal or stone or something and they were using it on Finn!" Came the exasperated Marceline.

"Wait. A stone? When Finn came to get you, he was going to ask you about another vampire. He was a victim of one of these dudes and he also had a stone" Jake said, while rushing to his bedroom. He had stretched there and back in only a few seconds, his paws now holding a reddish crystal-like object. "Like this?" Jake said, staring intensely at Marceline.

"Yeah like that." Marceline flew over and picked the stone up. As she did so, she immediately felt something overpowering surge into her, like there were thousands of years of life trapped inside that red object. It called to her as a vampire, seducing her lust for energy. Before she could become entranced by it, something happened. She felt something that was lingering, slip away. She felt Finn die.

"Oh my glob, Finn!" Marceline's eyes grew wide.

"What?! What about Finn?!" Jake was on the verge of tears. Jake rushed to the side of best friend. He put his ear to Finn's chest and listened. "I.. I don't.. hear a heartbeat.." Jake was stammering through sobs, now. Marceline took one look at Finn, and then one look at the stone. "I have an idea.." Marceline bit into the crystal, which surprisingly gave way to her teeth easily.

"This is no time to be enjoying a snack! Finn is.. Finn's…" Jake, eyes were wide and filled with tears. He couldn't bear to look at this dead brother any longer now, and so he averted his gaze. However, behind him, Marceline was experiencing something quite unusual. She was feeling the influx of enough energy that she wouldn't have to feed again for another thousand years. But that's not what she's going to do. After having drained the stone, she dropped it, it turning a sickly grey. Her cheeks had turned a rosy red and her eyes shone as a brilliant scarlet as if the immense energy was attempting to escape her. She turned to Finn and moved to him ceremoniously, deliberately slow.

"Oh what are you going to do.. Bite him now too?!" Jake was hysterical. "Or are you going to- Oh.." Jake, was witnessing something he didn't think he'd ever see. Marceline had brought herself to Finn, and pushed her lips into his. Her cheeks and eyes were returning to their paled color, while Finn's grew redder and redder.

To Jake, it looked like she was giving him CPR, but a kiss from a vampire and not a bite, Marceline knew, was reserved only for those who she was supposed to loved dearly. It only works on those she loves dearly, even if she didn't know it. And it was reserved for those who she viewed as a person to bond or to mate with. It was a way for vampires to share the energy they'd collected with one another, to keep their mated partner alive as long as possible-living in eternity. Except in this case, she was sharing it with a human. She knew that she was pouring an unnatural amount of life back into Finn's body, but she couldn't stop once she had begun. His heart, which had begun to beat again, caused a surge of relief to manifest as tears in her eyes. In order to save Finn, a vampire had given him the kiss of life. Unbeknownst to Finn, this kiss would be a seal upon his fate.

Here's the short of it: I'm back for awhile, I polished up this intro chapter, I'm putting the other story on hiatus since I feel I butchered my original idea, and, I'll be finishing up this story instead. I have no idea how many chapters it could take.

If you see anything grammatically abhorrent, message me and I'll take a look at it. I will gladly look at everyone's thoughts and ideas (if i have time, again). I really like the Adventure Time series and I'm a little saddened there aren't more fanfictions of a certain caliber out there. I really enjoyed the one involving buying Finn as a slave, involving a romance between Finn and Marceline eventually. Maybe I'll branch off and try my hand at something like that. Dunno. And I'm not saying the one I'm making is high-caliber, but yeah.

Ideas and thoughts would be greatly appreciated. It would help to keep me motivated. Practice-practice-practice-practice-practice, means, write-write-write-write.