WARNING: A certain someone will return from the Nightosphere! But that's gonna come out in a TWIST! So who will really return from the Nightosphere?

I don't own anything.

"F-Flame Princess?!" Finn shouted in shock. Jennifer frowned. "Yes. Is there something wrong?"

"Uh…listen, I gotta to go…"

"Where?"

"My friend…Marceline…"

"Marceline Abadeer?" Jennifer said the last word with venom. This scared Finn.

"Y-yeah…"

"You would like to be around a person like her?"

Finn tried hard to prevent himself from baling his fists and yelling at Jennifer. What was this, Hate- On-Marceline Day?

"Yes. And there's nothing that would change my mind." Finn said with more pride.

"Do you have feelings for her?"

"N-no!" Finn blushed. "Look, I gotta go. Bye!"

Finn quickly ran from Jennifer panting. This couldn't be happening! Jennifer as Flame Princess? Was the fan fiction thing coming true? And it also said Finn would develop a crush on FP! And he's starting to have a small one on Jennifer!

And what about Bonnie? What if she was from royal blood? Or royal gum. And Marceline! His crush! Could she possibly be a queen of vamps?

Finn tried to get his mind off of those things as soon as he saw Marceline's house. Just at least four feet away. He knocked and the door opened.

"Sup, Finn?" Marceline greeted with a smile. "Hey, Marcie." Finn said trying not to sound suspicious.

"So what do you wanna do?" asked Marceline. "I'm kinda getting tired of jam sessions and wrestling wolves."

"Well, Marceline…I think Bonnie hates y-"

"I know,"

"You do?"

"Yeah, Finn. I've known Bonnie longer than you were born."

Finn's eyes widened. Longer than you were born. The phrase kept rolling in his head.

"Finn? You're zoning out." Marceline waved her hand in front of Finn's face. Finn shook his head.

"Um…say Marceline...you wouldn't happen to…just out of curiosity, have a craving for blood?"

"Blood? I would lick it up if I was bleeding or anything and all I would taste would be sweetened water."

"Can you be out in the sun for a long time?"

"Boy, Finn, what are you doing a survey?"

Finn managed to make a relieved smile. "Yeah! A survey! That's it."

"Then where's the sheet? And what subject is this on?"

"Science. A-and I don't need a sheet. Miss. Petrikov (Ice Queen) said all we need to do is ask people questions and get a sheet of paper signed by our parents to prove we did."

"Weird survey. But if it's from Miss. Petrikov then I wouldn't be surprised. Well, my skin is kind of sensitive to the sun if I stay out there too long which is why I often carry sun block with me."

"Can you eat garlic?"

"Of course. But it's one of my least favorite foods."

"What's your favorite?"

"Strawberries,"

Finn gulped. "Do you have very sharp pointed teeth? Like…fangs?"

"What? No!"

"What's your favorite animal?"

"Vampire bat,"

Finn exhaled deeply through his nose. "What's your favorite mythological creature?"

Marceline raised a brow. "Dude, what's with all the vampire related questions? And why are you sweating?"

"Just a medical condition. And the survey is on vampire related stuff."

"For science?"

"Would you just answer the question already?!" Finn shouted. Marceline looked at him in shock.

Finn immediately regretted the words that escaped his mouth. "Marceline…I…I'm sorry, I didn't mean-"

"You having a bad day, weenie?"

"You could say that…"

"Spill,"

Finn told Marceline about his anxiety over the fan fiction.

After finishing, Marceline was silent for a couple moments before bursting into laughter.

"It's not funny!" exclaimed Finn. "I seriously think somebody's watching us!"

"So let me get this straight," Marceline giggled. "You really weren't doing a survey for science, you were just asking me questions to see if I was a vamp?"

Finn nodded.

Marceline chuckled. "Poor, Finny. I bet you're in some emotional distress."

"Shut up!"

"But seriously though, I think I might be from royal blood…"

"WHAT?"

"Chillaz, Finnegan, I said think and might."

"Well who do you think your from royal blood?"

"My dad. He said he dreamed of being a lord as a kid. And he grew up to be a lord alright. A lord of evil!"

Finn bit his lip. He remembered in fan fiction that Marceline's dad was the Hunson Abadeer, like in real life. But in fan fiction he was mostly known as Lord Abadeer or the Lord of Evil.

"Why lord of evil?" asked Finn. "He's always making these stupid punishments and rules for me. I was so sick of it! But he's in the Jail of H**l now or what he likes to call, the Nightosphere."

"How come?"

"It's always night there. Moon never goes done. Only a hero pure of heart can set down the moon in there and restore balance to that world. Sounds like a person like you, to me, man."

"Heh…yeah, I guess. Thanks. But what about your mom?"

"She's on a business trip. I'm staying with my aunt whose sleeping as usual."

Finn looked at a nearby clock on the wall. It read 6: 55.

"Holy mania! I'm late for a sleepover with Jake! Gotta go Marcie, bye!"

Finn began to run out as Marceline waved at him. But he turned around and asked, "Just this last question. You know who else is in the Nightosphere?"

"Yeah. My ex-boyfriend, Ash the Vampire King."

"Ex-boyfriend? Vampire King?"

"Yeah. We dated a couple years ago. But little did I know how much of a jerk he was. He used me, stole my virginity but I was too blinded by love to even care. He sold my favorite thing in the world , a teddy bear named Hambo, to some wannabe. Plus he never told me he was a vamp until he attempted to bite me."

"Vampires are real?!"

"Yeah. There's lots of them. I got so ticked at him for acting like such a psycho and hurting my friends I killed him, scattered his remains around the world and banished his soul into the Nightosphere."

"…"

"What?"

"…that's some heavy jazz. But I guess he deserved it for using you."

It was true. Finn wanted to beat up Ash for what he did to Marceline and was glad he was dead.

"But…he wasn't all that bad. I mean, he wasn't always like that. He was a great kind-hearted person once. But then he disappeared for weeks and when he was found he acted differently. After banishing him and doing some thinking, I resurrected him and asked if we could just be friends. Be he wasn't on board with the idea at all and he left to go back in the Nightosphere in one piece, swearing one day he will have me back."

"And you haven't seen each other since?"

"Nope," Marceline picked up her bass and silently strummed the chords.

"Don't you think you should try to get along again, you know, start over fresh and just be friends?"

Marceline laid on her back on the ground. "He's not worth the effort,"

"Not worth what effort?"

"Well, to open the Nightosphere, you gotta draw the face of your favorite singer."

Finn drew a huge face on the wall of Adam Grontier.

"Then douse it with skim milk,"

Finn splashed skim milk he continently found in Marceline's fridge on the face.

"Then say, 'Evil be with me and your spirit!'"

The face Adam Grontier started to glow. "Ha, ha, ha!" Finn cackled.

"But I really don't wanna see him, cause I'm still mad about the thing with him using me and…HUH?!"

Marceline turned with a look of shock and confusion on her face.

"WHAT?!" Finn yelled as the ground began to shake and a hole opened with fire in the background.

Then it turned into a swirling blue portal. Finn and Marceline watched, stunned as a foot came out from the vortex, and soon the whole body.

And standing before them, was none other than Ash the King of Vampires who winked with a devious smile and said,

"I'm back!"

I was gonna put some Finnceline fluff in this chap but I'll save that in the next chapter. And I promise Bonnie and Jake will be in the next chap! Jennifer might. Mr. Petrikov might and Hunson might but I'm not completely sure about him.

Gender swaps will also be in this story in later chapters.

-BossKing109