When the people of the land of Ooo was doing their normal everyday thing, a male [OC] human who was a Hybrid (Alien, Predator, Vampire and Werewolf with a big heart for Soldier life) named after his great great great grandfather who died in the Darkness War whose name was Celtic, and weird things start to come, WEIRD!
Rated M: Matured Audiences, Mild Language, Disturbing Scenes, and may contain Sexual themes.


Years passed and it's a good day in the Land of Ooo, but this time, it's something that Finn and Jake didn't expected. Jake grew into a few inches, and his face looked like a Pitbull dog, while Finn grew a few feet maybe two, he have a few hairs over his mouth and he has his hat still on his head. In this day, Lady and Jake supposed to be on a date a few minutes ago, but all the adventuring made Jake slept late, waking up, Jake saw the clock, it was 1:00 in the afternoon, as the dog stood up, and he hurries, he ate his bacon and eggs breakfast, washed his face, brushed his teeth and took a bath, when he was done, Jake open Finn's closet which made a loud CREEEEEK, that made Finn awake. "Jake, ugh, what's with the noise?" Finn said while wiping his right eye. "Oh sorry 'bout that bro, I'm getting late, Lady and I have a date in the Candy Kingdom, if you get hungry, there's an apple pie in the fridge, Tree Trunks made it for you, a thanks for saving her from the Earclopes attacking her home" Jake get his black hat from Finn's closet and said "Well man, smell ya later..." Jake went off and Finn stood up and goes to the kitchen for the food. "Hmm, Apple Pie, Mutant Rooster Egg, and a glass of milk will complete my breakfast" Finn get the requirements for his breakfast, and ate, after his breakfast Finn took his cellphone and went to his bathroom for a quick wash, Finn played a music from his phone and went on the bathtub/shower and start singing. "...But I won't hesitate no more, no more, it cannot wait I'm Yours..."
Finn was finished taking a bath, while he was about to wash the dishes downstairs in the kitchen, he heard someone knocking on the door, when he opened the door, Finn saw a skeleton masked teenager boy, Finn can tell that he's a boy because of his eyes, he was about PB's age and height, he had a brown hair sticking out in his mask, he had a pair of headphones in his neck, and shades in his head, his eyes were coloured sky blue, Finn asked. "Hello there, who are you?" "My name is Celtic, can I come in?" Celtic said "O-kay?" Finn opened the door for Celtic and the two sat at the sofa. "Hey Celtic, can you tell me how did you get here?" Finn sat next to him after he asked. "I don't know how I really get into this world, I was preparing for a battle then I was unconscious and I woke up in some forest made out of sweets" Celtic replied, Finn thought about something. "Hey what's your name anyway?" Celtic asked when Finn is in the middle of his thought. "Oh I'm Finn, Finn the Human, nice to meet you Celtic" Finn and Celtic shook hands. "Celtic, can you tell me what kind are you? I've never seen your kind here." Finn asked while scratching his head. "I'm a human, I'm just wearing a mask, I am like a spy or assassin..." Then Celtic removed his accessories in his head. "See?" Finn was surprised that he would see another human, he saw Celtic has a pale skin like Marceline's but he has buffed body that make him look more like a Why Wolf, when Finn is jawdropped, Celtic stared at him. "You there man?"
Finn is not responding, but Celtic thought of an idea to wake him up,
Celtic took a flash bang on his pocket armour, Celtic put his Anti-Flash shades and start the flash bang in front of Finn's face and BOOM! Finn was slightly blinded in the flash and woke him up from his coma "Dude what was THAT!" Finn shouted at Celtic who was laughing at him. "It's called Flashbang man!" Celtic told Finn, making Finn wander about that. "What is this Flashbang?" Finn asked. "Finn, imagine it's a ball that makes you see a light that is so bright that it can make you blind, that's a Flashbang but actually a Flashbang is rectangular" Celtic smiled. "Man, that's cool! Do you have any more things like that or maybe some special abilities or skills?" Finn asked with his eyes glittering with impression. "Well I have some more rectangular thingies that can do other stuff like my Flashbang, and abilities, well I never have one, but I don't know if this is an ability nor a skill, I have a fluorescent green blood which can burn through anything, I drink blood sometimes, I eat raw meat, and I can change myself into a Werewolf, even without any full moon, but I don't think it's an ability, cause if I do that, everybody will call me a monster" Suddenly Celtic changed his body into a werewolf, and Finn was surprised with that, luckily Celtic's clothes were stretchable. "Dude dude! That's one cool thing!" Finn remembered what he thought earlier and he said "Celtic, I'm gonna show you to everybody tomorrow in the birthday of my friend Princess Bubblegum! Everybody's going to be there!" Celtic didn't know if he is good to be seen by other people, for a reason, he is a half monster and half human, he don't want to scare them all but he said. "Yeah, but are you sure that I can sleep here?"
"Oh hell yeah!" Finn answered fast.
"I don't wanna burst your bubbles but, I don't have anything to wear." Celtic said, going back to his normal form from his lycanthrope.
"Well tomorrow, you can borrow my other tuxedo that my friend made for me for future generations, want to try it out?" Finn gave a thumbs up.
"Tomorrow morning would be okay, I should stroll this world, what is it anyway?" Celtic asked with his hand on his head.
"This world is called The Land of Ooo, many things are in here that no ordinary humans can see in their world, like talking candies, houses and even animals, I just thought of something again, want to go adventuring with me?"
"Well, I can stroll while adventuring, hey, before we go, may I drink some water?"
"Sure, the kitchen is right over there." Finn pointed to his west.
"Thanks man" Celtic stood up from sitting and went to the kitchen while Finn took his cell phone and called Jake.
"Jake, you got to come here! You really got to meet this new dude!" Finn whispered in his cell phone so Celtic can't hear him.
"Finn, you are so lucky, my date with Rainicorn is done, I'm coming home later, meet you in 2 minutes, see ya bro." Jake hung up while Finn is getting excited.
"Finn, let's have some adventures now shall we?" Celtic asked with a bottle of water in his hand. "Celtic, can we leave later, maybe after 10 minutes, I got to fix our tuxedo, you know, you should fit it now."
Finn walked in his room to fix his tuxedo, Celtic put his empty glass in the sink and followed Finn. Finn took out his tuxedos. "Finn, can I know which one is mine?" Finn pointed the left tuxedo that is way bigger than Finn's. "Well I got to try this on eventually" Celtic goes in the bathroom to change while Jake suddenly appeared in the window with Lady, Lady and Jake kissed and Lady flew off, Finn go to his bro excitedly and whisper inside his ear. "Dude, you got to meet another human who is seriously has a lot of abilities!"
"Where is he now?" Jake suddenly became excited too.
"He's in the bathroom." Finn pointed at the bathroom, and finally Celtic came out with his tux in his hands.
"Hey Finn, thanks for this and..." Celtic stopped while he saw a dog who has a colour gold fur and look like a pug.
"Finn, you didn't tell me you had a dog!" Celtic ran to Jake giving him a rub in the neck.
"Celtic, Jake. Jake, Celtic" Finn introduced.
"Celtic, nice..." Jake spoke making Celtic surprised.
"Woah, you can talk? That's cool!" Celtic said loudly.
"Not just that, watch." Jake copied Celtic, every detail except for the colour.
"And you can like shapeshift too? EPIIIIIC!" Celtic shouted.
"He can also walk like us humans." Finn smiled while Jake go back to his normal form and stood up, Celtic circled around Jake, observing everything Jake has. "Anyway, Celtic, does the tux fit well?"
"Yeah, it fit perfectly."
"Hey Jake, me and Celtic is going on an adventure, want to come?"
"You know I'm always up for adventuring!" Jake replied.
"What time is it?" Finn asked both of them.
"I think it's 10 in the morning?" Celtic said while looking at his watch.
"Hahaha! It's Adventure Time dude!" Finn punched Celtic's arm making Celtic and Jake laugh as well.
"Oh, sorry 'bout that, what time is it again?" Celtic asked.
"I-I-I-IT'S ADVENTURE TIME!" They all yelled.

Outside, Celtic and his two pals were walking in the grasslands, suddenly they all heard screaming not far, that made the three boys go into where the scream went, when they went there, they saw some Wolfmen eating a bunch of houses, so they decided to hide in the bushes.
"Jake what are those?" Celtic asked pointing at the Wolfmen.
"Those..." Jake pointed at the Wolfmen. "...they're are WhyWolves, half businessman half wolf and those..." Jake pointed at the houses that Celtic realized that the houses are small and it was screaming. "...are the People Houses, they are mini buildings that WhyWolves eat, because People Houses are in the top of the food chain of the WhyWolves , guys, I think we can make an adventure out of this, let's kill 'em shall we?" Jake asked. "Sure, but you two go ahead, going to watch their every move, I don't want to get killed by my half kind, but with you two, I might stay alive, but just to be safe, I'm going to stay here. " Celtic said
"Well, ok, let's go." Finn and Jake come out of the bushes and spotted a lone WhyWolf. "Hey, you bastard house-eating wolf!" Finn pointed his sword on the WhyWolf about to eat a house. "Put the house down, and let's dance!" Jake continued, the WhyWolf rushed and saying "You're dead meat!", it lunged at Finn, and Finn swing his sword cutting the wolf in half, blood spread all over, the other WhyWolves smelled the scent of their dead comrade, and put the houses down and attacked the two. "Bring it on!" Finn get ready, and Jake transformed his hands into a mace and blade, they both slashed and killed some few WhyWolves, while Finn and Jake was bringing the wolves into hell, Celtic get his portable Barret .50 Cal from his pocket armour, assembled them, putting a suppressor and a scope with a 500 feet range, when he is done assembling, Celtic aimed for a WhyWolf who was going to attack Finn from behind, he took a deep breath and shot the wolf in the head killing it, making Finn heard the blood splashing and look behind. "What the gob?" Finn saw a hole in the wolf's head and made him wander and Finn didn't noticed that Jake was pounded by a WhyWolf and about to bite him, but Celtic threw a knife to the wolf. "Please don't kill me!" Jake said while closing his eyes, afterwards, he realized that there's a knife in the head of the wolf and it fell off its feet. "What's this?" Jake took the knife from the head and looked at the handle, in the handle, there was a name carved on it, Predator, Jake got scared that there would be another enemy who is more stronger than them, the Predator carved in it was meant that there is a flesh eater or killer near them, but he saw the blade with a carving name too, it said Celtic, and Jake finally realized that Celtic threw it, after the battle is over, Celtic go out of the bushes and went to Finn and Jake while holding his Barret .50 Cal in his hands. "Celtic! Did you just throw this knife at the WhyWolf?" Jake take out the knife he was holding. "Yeah, you were about to be a lunch out there." Celtic replied. "Man, that aim was pretty awesome!" Jake told Finn and the brothers were really impressed of him. "Hey Celtic, are you the one that killed the WhyWolf that is going to attack me from behind with that?" Finn said while hoping for a positive answer. "Well, yes, this is called a gun, if you have a bow in here, this is my bow." Celtic smiled while he disassemble the sniper, after the adventure, the group goes back to the tree house and they realized that it was getting late.
"Guys, I think we called this a day, let's go get some rest." Jake complained.
"Yeah" Finn and Celtic said at the same time.
"Finn, where do I sleep?" Celtic asked.
"Well, you can sleep on the floor, with a mattress on or you can sleep on the sofa outside, choose." Finn offered.
"I'm going to sleep on the floor." Celtic took the first offer.
Finn, Jake and Celtic prepared their beds, Finn put his backpack in the large chest in the corner, Jake stretched and turn smaller so that he can fit in his drawer bed, and Celtic removed his mask, and his armour and put them aside.
"Goodnight Jake"
"Goodnight Celtic"
"Goodnight Finn"
And after a minute, they fall asleep.

Celtic woke up after a few hours, he looked in his watch and it was midnight, he remembered that he would stroll the land which he didn't do earlier because of an exhausting adventure, so he find his gun parts, and assemble a M4A1 RIS with a suppressor, a flashlight below and a combination of a holographic sight and ACOG sight making the gun a M4A1 Hybrid and he packs his things, Celtic left the tree house and turned his flashlight on, Celtic saw many things in the dark, he saw a pink cloud but that didn't bother him, it's just a cloud, he also saw few skeletons passing by, walking about a few miles, Celtic saw a floating creature, he hid in the grasses, he turned off his flashlight not to alert the beast, he puts his night vision goggles on and when he looked closer, it was a girl, but why is she floating, then the vampire turned, Celtic saw that she have fangs, seeing that made Celtic realized that she was a vampire, she have a pale skin like him, long black hair, and having an axe on her back, she pulls something out of her pocket, it's a strawberry, Celtic thought that she wasn't a hostile so he thought about leaving, but when he was about to leave, the vampire girl smelled his scent.


Author's Note:
Hi everyone, I don't usually do this, but if you stay this long, please give it a review or even some love, I'll do my best to keep up, so what do you think?
Shall I continue or shall I not?
Give some tips or maybe some parts that I can add in the story, you decide...
Modern Gear 3 out...