I cried when I wrote this chapter.

Fiolee fans and everyone reading will do the same.

I *sniff* gotta go.

Enjoy.

:(

"Lich!?" Fionna says and runs to the window. Looking outside, the 14 year old sees the Lich King heading their way, shooting out green fireballs with his ghostly army of souls behind him.
"Oh glob." Fionna says and heads towards the corner of the room and grabs her demon blood sword. Surprising her friends, the heroine leaps out the window of the tower. "Fionna!" Her friends yell. Marshall Lee floats down after her, Cake stretches down, and Gumball is on the feline 's back. His ghost gun in hand.
"HEY LICH!" Fionna yells landing gracefully on the ground. She rushes towards him and stops in front of him. "PREPARE TO HAVE YOU BUTT HANDED TO YOU! BY ME!"
"Hahaha!"The King laughs. "Foolish human! You're useless to me! Pitiful! I thought I got rid of your kind centuries ago!" The king shoots a fireball at the girl. She dodges it with ease and starts swiping her sword at him.
Meanwhile, the others look around and notice Fionna struggling with the Lich.
"I'll help her! You two kill the minions!" Cake says running off. " Cake!" Marshall Lee yells after the cat.
"Yeah?" She says looking at Marshall Lee.
"Call us of ya need backup."
Cake nods and runs to help her sister.
"Fionna!" Cake says stretching into a large hammer. Fionna grabs the handle. "Thanks."
Fionna attempts to hit the dark creature with the furry cat (That sounds so wrong!), but fails miserably. The king laughs again and knocks Cake out of Fionna's hands. He runs over to the feline and picks her up. She is now unconscious.
"Stupid feline! Didn't anyone tell you to never fight while you're pregnant?" the king bellows.
"LET GO OF CAKE!" Fionna says rushing the king. He laughs and shoots at the human girl once more. Fionna jumps out of the way each time. Cake wakes up and notices the girl fidgeting.
"Fionna!"
"Cake!"
Grab on to my little paws!" Cake says stretching out to Fionna. She grabs her hands and pulls the cat out of his grip. Cake stretches out her ears so they flap, allowing them to fly into the sky. She uses her tail as a propeller. "Cake, top speed! And when I say now, go faster and don't stop no matter what." Fionna says to her sister.
"Alright girl!"
Cake flaps her ears and fly towards the Lich King. "Now!"
Cake speeds up and Fionna jumps off of her, landing on the Lich' s back. She bashes his skull face in with her fist. He screeches, and with a cloud of smoke, he's gone.
"He's heading toward his well of power!" Gumball says pointing west of the Candy Kingdom. Cake swoops down and the three teens fly on her back to the Lich King' s lair. Marshall Lee adjusting his umbrella a few times to avoid the sun.
They into the underground lair. Inside the Lich has already started to brew up his dark magic.
Fionna leaps off Cake' s back and punches the Lich in his face. He knocks her in the face and sends her flying, making her hit the wall with a thud.
"I'LL KILL YOU!" Marshall Lee growls turning into his giant demon bat form. He tackles the Lich, who only laughs at the him.
"Join me Vampire King! With our powers combined, we can rule Aaa!" the Lich says "I'll tell you like I told the Ghost Queen. Not gonna happen crazy old worlock!" the Vampire King says delivering several blows to the skull like creature' s face. The king laughs and disappears. The Vampire King is confused, but the Lich King appears behind him unexpectedly and jabbes his claws inside of Marshall Lee's chest.
The dark king laughs and pulls out his claws that was covered in black blood. He disappears out of the underground well.
"Marshall Lee!" Fionna says running over to him. He shudders in pain and slowly turns back to his normal form. Fionna looks at the hole through Marshall Lee's chest and gasps. She feels tears well up in her eyes and its not two seconds before they start falling down her face. She sits Marshall Lee's head in her lap and cries softly. Gumball and Cake come over and sit at her side.
"You're gonna be okay Marshall Lee. We can fix this okay?" Fionna cries.
"I think this is it for me Fionna. I had a good run." Marshall Lee says in pain.
"Fluff no Marshall! You're gonna be okay! I won't let you die!"
"Fionna. Like you said, everyone has a weakness. Even though I am immortal, this won't heal fast enough. I'm sorry."
Fionna cries and says through clenched teeth. "Marshall Lee don't you flippin die in my arms! It's not your time yet!"
"Fionna?"
"Yeah?"
"I love you."
"I love you to Marshall Lee."
Marshall Lee smiles up at the blond and chuckles."My little bunny girl."
Fionna smiles down at him. His eyes slowly close. Fionna shakes him I worry.
"Marshall? MARSHALL!" Fionna cries and breaks down crying over Marshall Lee's body.
For the Vampire King is dead.