Chapter one

"Ow... my head..."
Fionna woke up lying on what seemed to be a bed. She tried to open her eyes, but they felt heavy when she blinked, so she gave up trying. First, she got her thoughts straight. She was lying on a bed because... because she had lost consciousness. That seemed strange from her... Never mind, she had fainted because... she had touched the mirror? How strange.
"Time to open my eyes," she tried opening her eyes again, and succeeded. She was in a completely white space. When her vision started returning properly to her, a door in the room opened and she, out of pure habit, closed her eyes again and acted as though she was asleep. She wanted to be sure that whoever had come into the room was friend or foe.
-See! What did I tell you! She hasn't woken up yet. She must have hit her head...?- a concerned female voice said.- Do you think it's severe?
-Severe? Don't be stupid, Penny! She'll be fine,- another female voice said. They seemed concerned about her, which was a good sign, but Fionna didn't recognise their voices. -I'm wondering if she did it to get attention. 'I'd never do that.' Oh, please. It wouldn't be the first time she has been 'injured' and everyone has rushed to see what was wrong. Don't you think, Lucy?-
-Oh my God, yeah! That is sooooooooo her!- Fionna almost laughed at the silly voice 'Lucy' did since it sounded so much like Lumpy Space Prince but...more feminine. What did bother her was that they all started laughing as though it wasn't even a joke.
-Okay, girls, that's enough. What if she can hear us?- 'Penny' said.
-Hey, we've said worse things,- the second girl said. They all started laughing again-
-I hope she's okay. Let's leave her alone, girls. She needs to rest,- Penny said, ushering the other girls out.
When Fionna heard the door close, she opened her eyes and sat up, completely confused. She had so many questions swimming around her head. Where was she? How the Lump did she get there? Who were those girls? They had mentioned that she had done something that seemed frequent. Maybe they had got her mixed up? Was it possible that she was the last human? She looked down at her clothes. How come she was wearing something that looked like a uniform? How come she wasn't wearing her hat? How come... wait a minute...
MY HAT!
Fionna started looking everywhere she could think of for her hat. From what she found in the drawers and cupboards, she deduced that she was in a hospital or infirmary or somewhere like that.
"Keep calm. Panicking is the worst thing you can do in a dangerous situation. Am I in danger? Never mind. That's not important at the moment, I need to get out of here," she said to herself.
She looked around herself and saw a blue shirt exactly like hers, and a pair of jeans. She decided that that was the best thing to wear if she was going to investigate rather than the 'cute top' and mini skirt she was wearing at that moment in time.
Once she had changed, she brushed her hair quickly, hoping she would find her hat as soon as possible, and made her way to the door. She stayed standing in front of it for a moment, wondering if it was a good idea or not... "Isn't this adventure time?" she asked herself. She walked through the door.

Fionna left quietly the room, there was nobody on the corridor. She decided to explore, so she could find the way out. She started to walk around without knowing where she had to go. She thought that maybe the place was huge, or maybe she was walking around in circles. Almost sure it was the second one. She only saw identical corridors, with lockers and doors with a number on it. Finally, she saw stairs and she went down. Fionna saw that there was two girls about so see her and she hide in a locker. The two girls didn't look at her.

"Phew, they almost caught me... How many floors do this building have?" She got out of the locker and she looked back, to see if the girls were still there, when a bell ringed loudly and a lot of people walked out of the rooms even louder than the bell. Totally confused, she followed the people, maybe they knew the way out. "All this humans are captive here? Or are they the captors?.. Wait... HUMANS!" She stopped, looking how all the other humans walk along the place. Nobody was wearing hat. She could see that everyone was human. Everyone. Did that mean that she wasn't the last human, that all the humans were trapped there?

She had to save them, but before, she had to get out of there. She followed them again, and she made well, they all knew the way out. When she got out of the strange building, she looked at it carefully. She didn't know what would she need to go home but... they were humans. Was that her place, her home? No, Cake was her home, and sure she was worried about her. She had to come back. The building reminded her of that places of the pre-mushroom war movies, the "High school". She saw that now she was in a place where there was a lot of cars. Everyone went out of there by car, or by bus. Before she could realize it, she was alone, with no idea what could she do now. But then she heard a shout: "FIONNAAAAA!" And she saw some girls "There are four girls, right? Let's see... Two at one side... Two more at the other... Yep, there are four girls", going to her. A blond girl with two pony tails went running and hugged her so tight that Fionna almost couldn't take breathe. "What's going on?"
-Oh Fi! You had us sooooo worried! Why didn't you call us when you woke? -Fionna recognized the voice. She was Penny, who had visited her with three girls more... She get it immediately. They were the four girls from before.-
-I'm sorry P-Penny... -She thought that if she pretended that she knew them, she could find out where she was.-
-Don't you ever dare to do that again, never ever. -Penny said.-
-Oh my glob, when I saw you like, fainted on the floor, I thought you were like, totally dead. -Said Lucy, the one who talked like the Lumpy Space Prince.-
-You're gonna stress her, girls. Let her breathe or she will faint again. -Said the dark-haired girl.-
-Yeah, and her man is coming, and if you still so close to her he will think that she is cheating on him again. -Said the red-haired girl, obviously making fun of her.-
Fionna was about to say something when she thought of what she said... Her man? But she didn't have boyfriend... Wait, that boy going to her was Gumball? They meant PG? But if she rejected him... What was he doing there anyway? Gumball came closer to her, he winked at the girls, who answered with silly laughs (unless the red-haired), and he went to Fionna.
-Hey, honey! -Said, and before Fionna could do anything, he set her fringe aside and...
"WHAT THE MATH IS HE DOING?!"
...kissed her.