Author's Note: HELLO EVERYBODY! Okay it's time for a change of pace im writing a Adventure time fanfic for change instead of my other seven fanfics for Naruto. Okay im gonna say this write now I haven't watched every single episode of Adventure time so there might be some plot inconsistences but still please show me the plot error's anyway and yes I know finn kinda met his dad but I refuse to think his dad was a selfish jerk.

Jake sat on the bed staring at the wall the visible remnants of tears still on his face. There was knock on the window and Jake opened it as Lady Ranicorn poked her head in side.

"Jake to you want to come with me to his funeral" Ranicorn said

"Not much of a funeral if they didn't find his body" Jake said

"Jake…Honey you did the best you could but you couldn't find him…let's go afterwards we'll play viola" Ranicorn responded

"Yeah lets go he was my best friend I have to do this" Jake said

Finn's grave

The small box contained Finn's backpack and sword the only things Jake could gather from the wreckage of the temple. The people attending was Flame princess, PB, BMO, Marceline, Lady Ranicorn, Jake and a few of the candy people. The rain splattered against the tombstone as the attendees cried.

50 years later

It had been a 50 years princess Bubblegum had still yet to inherit the thrown (Turns out Gum people are almost completely immortal as long as they chew there pinkie finger), Jake had aged but still had not died he was now about 30 years old biologically. He had gotten over Finn's death for the most part but always ALWAYS went to fin's grave every morning, Marceline took it hard and didn't talk to most of Finn's friends she usually blamed herself for his death but also the fact that she developed a bond with another mortal, Flame princess was the one who took It the hardest so she usually distracted herself from being alone so she wouldn't cry Flame Princess's emotions ran rampant for the first 20 years but soon afterwards she became normal again.

Bubblegum was currently sitting in the castle reading a letter from her father who was away.

Hello Bonnibel

How are you doing dear daughter. I shall be returning soon however i have come into a pickle and will have to push my arrival date back a week. The council of kings are discussing the discovery of the Dark Kingdom. Yes I know you must be shocked but the biggest surprise is that it's inhabitants are all humans, part demons, black fire people and mutants. Currently we plan to make a peaceful approach to the dark king and his son the dark prince. I hope you are doing well my dear forwell.

Sincerely your father

It was easy to say that Bubblegum was shocked humans, a new kingdom where mutants lived along with humans. This place would have made Finn happy.

"Peppermint butler" Bubblegum called

"Yes malady"

"Could you fetch the coucth driver I need to talk to Marceline and send word to Jake and flame princess" She spoke

"Of course Malady"

"Thank you" She said

Marceline's house

KNOCK KNOCK

"Come in" Marceline said on the couch watching some tv as Princess Bubblegum, Jake and Flame princess. "Sup" Marceline spoke

"Hey Marcy" Jake said

"I've asked for this meeting to talk about something special"

"Oh and what's that" Flame princess said

"And why are you doing at my house" Marceline said yet Marceline complaints where unheard as they continued to enter her house and sit at her table. Marceline just shrugged and with a huff sat down. "Okay Lay it on my PB what's the sitch"

"My father has discovered a new kingdom where it is located my father did not detail however this kingdom should spike everyone's interest" She spoke with a royal authority.

"What's that" Flame princess spoke who had not been able to attend the meeting

"this kingdom is named the dark kingdom its inhabitants are Mutants, black flame people, half demons and humans" she spoke immediately everyone's eyes bulged out of there head.

"What humans?" Jake asked

"Half demons where did they come from the only half demons I know of live in the night-o-sphere" Marcy said

"Black flame people. They died out years ago how could they be alive now" Flame princess said

"HEY CALM DOWN!" Bubblegum uncharacteristically screamed immediately the shocked individuals sat down. "1.) I don't know how the humans are surviving but they are 2.) I don't know how there are half demons and 3.) yes again I don't know how there are black flame people so intotal I DON'T KNOW" She said

….

"Oh" They said simultaneously

"Yes now that I've delivered this message I geuss well just hang out for half an hour"

"Cool" they all said

Meanwhile in the council of king's meeting hall.

"So then you believe we should become allies with this new Dark king" King gumdrop said (Ehh I felt calling him gumball would introduce the gender bender-verse into it okay)

"Yes indeed" the Embryo king said

"It wouldn't be a bad thing" King Gumdrop replied suddenly the door opened and there stood on of King Gumball's soldiers bleeding Soda and bruised.

"My Lord, My Lord!" He exclaimed "Where under attack Cain has been freed by his shadow army"

"Good Glob that's impossible Cain was sealed away in the tomb of the 3rd Dragon king's sealing room with the Eight trigrams seal, Rosario cross and the 1st Ice king's ice" said the Jungle king.

"Wait there was Another ice king" Ice king Said

"But he has and now" The knight said

"Hey" Ice king said

"He will unleash his dragon forthgad Beelzebub von Kingslayer of the burning legion"

"Hey" Ice king said again

"And if that happens he can reclaim his sword from my castle" King Gumdrop said

"HEY!" Ice king shouted

"WHAT!" Slime King snapped

"I forgot" Ice king said causing everyone to sigh and think 'why do we let him in'

"Anyway we need to prevent him from getting there" Gumdrop said

"Right" they all said except for Ice king who was trying to remember what he was going to say

10 minutes later outside near the gates

"FIRE!" Shouted general peanut butter cup immediately a hail of gumballs shoot through the armour of the zombies inside before they immediately they exploded into chunks of body parts spilling out green blood everywhere.

"Now FIRE TEAM 7!" the general said as the smaller soldier shoot soda at the next wave as they watched them melt away.

"That corrosive cherry blast defeated thouse blighters fast ay my lord"

"Indeed" King gumball said

"Sir more enemy units are coming in, they just keep on coming in not only that but Zombie infected candy people are also being created. On a good account we've reactivated the trap system where predicting 40% of the enemies units will be destroyed by them" The Muffin shaped boy said

"Thank you raga muffin"

"You're welcome sir" He said before a sudden explosion happened causing Dust blow them away

"WHAT HAPPENED?!" King Gumdrop said suddenly there was an explosion

"I happened" A dark voice said

"No" Gumdrop shuddered looking up he saw the massive long bodied Chinese dragon grinning red eyes beaming and black skin glistening it's spin ripping through the flesh with it gleaming a bright green from the hole between the flesh and bone. Its ribcage showing and a bright green core illuminating from its stomach. On the dragon's head stood a knight all in black. A bright red illuminating from the cracks and parts. The knight wore a helmet that was perfectly curved and a the grill like visor thing covering its eyes to long black plates of metal draped down the side of his face yet revealing a mouth of teeth and bone. "I Cain the dark king have returned and now I'll shall slay your daughter, kill my son and corrupt my grandson" he said disappearing. Leaving the wreckage of the castle to be swallowed by the green flames burning away at its hull leaving nothing but a husk of a memory of where it once stood.

Author's note: What did you think of this. It's my first Adventure time fanfic and yes I will update a world of demons on my page im struggling with writers block for that so im making my creative juice's going with this one. Also the dark prince will appear next chapter.