1k+A Guardian Angel » by Hyuga09 Marshall lee is a normal teenager living a normal life, he goes to school, lives on his own suffers from a genetic disease where he can be killed by the sun and has mandatory psych appointments because his mom thinks he thinks he's a vampire totally normal...Well for him. All that normal changes one fateful day after he gets into a fight with a blonde over a strawberry glazed donut

140Adventure Time with Madeline and Fritz! » by Ciaxlia WHAT TIME IS IT! ADVENTURE TIME! This here is the long awaited sequel, that you all asked for! Continuing on from where we left of in The Red Thief, our story follows Marshall and Fionna's kids, in their adventures in the Land of Aaa! Madeline and Fritz, the New Hero's of Aaa, are just itching to take you along on their Mathematical adventures! So come on, grab your friends!

118Conquer » by Wolf Huntress Silver Blood Fionna is a teen who fights in an Underground Fighting club and is haunted by her dark past. Marshall Lee is the Abadeer heir who has become intrigued by this girl. What will happen once they find out that their paths are intertwined? 'Conquer' Remastered new Story line! Part 1 of a 2 Part series.

56 The Games » by Finnismathmatical Fire King has gathered four people from different kingdoms to compete in the game of the century The Games! Win and be awarded with freedom, lose and be met by death. Will Fionna be willing to kill her best friends? Rating changed because of language and scenes later on. A story of betrayal, war, heartache and wanting.

14 Free » by DarlingSpade From the genderbent world of Adventure Time comes the story of Fionna Mertens and her quest to save her town of Aaa from the masked rulers rule.

924 » by purpledragon6 A What-If in which Marshal wishes he could be a mortal man again for just one day, and would do anything to make that wish come true, even if it involves making a deal with a shady queen, and pulling off a task that would be considered impossible for any being. Re-do. FionnaxMarshall

55 Roomies » by AngelWings46846 Fionna moves in with Marshall Lee because Cake practically moved in with Lord M even though technically she still lives at the tree house with Fionna. That and Gumball practically kicked her out of her house because of a law that is in the Candy Kingdom and Land of Aaa. So, what will happen between the 2 best buds sharing the same stuff? Rated M: Language and Sexual Themes

365 Change Everlasting » by Annalynn Roe A king's word is law, but what if that word changes your life, and not for the better? Prince Gumball dictates Fionna is of age and must marry, and that he shall chose her husband. But Fionna does not want to marry some stranger. Change is never easy, especially when things don't turn in your favor. Good thing she knows a certain scheming, Gumball-hating Vampire King.

72A New Generation of Royalty? » by FioleeOTP Marshall, while having a meeting with the demons of the nightosphere, he found out the demons were planning to kill him and Fionna because that Fionna was useless to them. So, the get his beloved out of the fate, he said she was pregnant. Now they demand to see her. What will happen? (Rated M for later lemons)

188Aaa Academy » by AnimeRoses Imagine this, The land of Aaa is a High school. Fiona and her sister are new this year at Aaa Academy, and though her sister may be looking for love, Fiona is just looking for adventure. What if the road to adventure also leads to a road of love? In this story the characters you love are mixed into the fun of high school. Can someone spell LOVE TRIANGLES?