Simon gets the power of the crown, but he doesn't lose his sanity or Betty. The war happens and Simon and Betty find Marceline and raise her as their own. The new family face many difficult challenges. A story in which a hero will rise and help defeat a great evil in the distant future. A different Ooo will rise and take shape. Also there will be many crossovers.

A stranger has appeared in Ooo. What do they want? How did they get there? Join Fin and Jake on an adventure that will change lives... forever

Marshall and Prince Gumball havent always been so distant, can they get back to where things once were? Slow relationship build up, rated M for now as later on will develop into smut triggers: depression, suicidal thoughts GUMLEE FANFIC

Lemongrab, TreeTrunks, The Ice King, NEPTR and Shelby find themselves in the dungeon again and they must over come its many challenges and dangers together if they are to escape.

No poder entender las emociones o expresiones de los demás, por el motivo de que sólo estas hecho para hacer un sólo trabajo. Esta es la historia de Cosmos/Leo. Un ente creador el cual se le dio la tarea de convivir en un universo especifico para que pueda entender las emociones. ¿Qué clase de cosas pasaran en Ooo tras su llegada?, (Mejora con el tiempo)

In this story Marshall-Lee realizes that after his 'love' Fiona leaves Aaa on a mission for adventure, his real crush is.. Gumball. Yes the pink prince is his new kryptonite, and after a hot night of realization for the two, the blonde comes back to confess her 'Love' for the prince. Will Marshall and Gumball figure this out?

After the gum war, everything has calmed down, and new adventures are rare to come by. So when Finn and Huntress Wizard go to investigate a strange energy reading left behind by GOLB, they find a whole new load of adventures greeting them. (Chapter one has been remastered!)

This is a what if scenario where Marceline and the Vampire King made a deal that would benefit both her and the humans in the past. A birthday gift from TME.

A retelling. The war between the two kingdoms of candy waged on, Finn swears his loyalty to Bubblegum. As the Candy Knight and Princess they struggle to protect the innocent while defeating their enemies and overcoming themselves.

Mere weeks after the climactic events of War Drums, Finn the King is faced with a renewed onslaught from the Bandit Princess. The forces of evil are more determined than ever to shatter the Peace of Ooo. Can Finn pull the civilized kingdoms back together before the Bandit Princess unleashes her ultimate weapon? M for Lemons and Language. Adventure Time is owned by P. Ward.

A collection of one shots and short stories taking place at various points and alternate universes after the series finale. I claim no ownership of the universe, the characters, or anything else related to the medium. All rights go to cartoon network.

What would have happened if Finn went Rogue after the events of Red Throne, after being turned down multiple times by Flame Princess, what if he became the villain of Ooo that he swore to an Oath that he would never be. Can Princess Bubblegum, Flame Princess, Jake and Marceline to bring our Hero back or will he remain evil forever?

All was well in Ooo since Golb's banishment at the end of the Gum War, until one day the Lich unexpectedly returns and takes on a new body. With his return comes the end of an era and the rise of a new ruler in Ooo, setting in motion a chain of events that will ultimately force Finn to grow up and face the harsh reality of adulthood as he overcomes new trials and hardships in life.

Finn and Jake must find a way to save Ooo again.

How will 19 years old Finn Mertins tackle the University Life when the odds are totally against him. What will he do when he is double minded about his friendship and Love ... Do he see her as a friend or his love.

Redemption and recovery may come at a steep cost, but the Rehearsal is over and it's time for Bonnibel and Marceline to decide if the price is one they're willing to pay.

A teenage girl with an unknown past falls into the land of Ooo literally. Now Finn is no longer the only human and now Finn and Jake have a new sister adventuring with them. Will she find out where she came from? What kind of adventures will she have? What friends will she find? Also who will she fall in love with? Roxy/?

Marceline não gostava de brigadeiro, mas gostava de Bonnie.

When a kingdom loses it's royalty and they have no heir... what lengths would they go to.. to restore the balance? When a human wakes up in a room with no door and no window with the fact he's human being the only part of his memory how will he react when he finds he's arrived in the land of Ooo along the time of it's greatest Hero.. Finn the Human.

So, 1000 years have passed, Find out what happens to our beloved characters in the future, what caused such a drastic change in Ooo and beyond. This is the Unofficial continuation of the show, season 12 and onward. And about Pairings, hmm ... for now the main pairing is Bubbline.

Everyone in the sister lands of Ooo and Aaa believe that Finn and Fionna are the last humans, but they're not. There are no humans left. The twins are royals, sent with their guardians, Jake and Cake... *Full Summary Inside*

This story was adopted from SimontheHawtee and is being co-oped by me and TME. There might be some dark lemons but good lemons either way. Constructive criticism is welcome but no negative reviews and no flames please (Title is changed!).

Fionna discovers she has magical powers. She travels into the magic realm with Finn and begins going to school there with all the other "magics"

LSP falls ill with a strange disease and Lemongrab does his best to take care of her. (it's a... lumpygrab/lemonspace domestic ficlet that quickly turned into something else...please read and review!)

Marceline waited too long. Oneshot; She. by Dodie Clark.