Chapter 1
Finn and Jake had returned home from the battle against Steven with the Lich captured. They arrived back in the Candy kingdom where they placed the Lich in his place, the amber resin at the center of the tree in the Candy Kingdom. One day, they were playing BMO, when they received a distress call from the Fire kingdom.
Flame princess: Finn! This is Flame princess! We're under attack by an unknown enemy! Help!
Finn: Don't worry. We're on our way!
Flame Princess: This doesn't mean we're getting back together.
She cut off the transmission.
Finn: Aw, man.
Jake: You ok, man?
Finn: Not the time now. We need to be professional. Let's go.
Jake grew to large size as Finn rode him to the Fire Kingdom.
At the Fire Kingdom, they found the area devoid of life, and in ruins.
Finn: Flame Princess! Where are you?
Jake: Aw gross! What is that?
Finn looked over and found a decayed flame corpse reconstructed and morphed into a nightmarish monster. It had scythe like blades on the arms that were coming out of its shoulders.
Finn: That looks like a flame citizen. Except, you know, uglier.
Finn leaned down close to it and every time he closed the distance by an inch, he could feel something from it. Something, terrifying.
The corpse suddenly shot upward and grabbed at Finn. Finn tried to keep the creature back, but it had unbelievable strength. Jake punched the creature back with a mega-fist. The fire that was the head of the being sparked up and exploded into a ghostly face. Finn stabbed the creature in the stomach, and it fell limp to the ground. Jake leaned down to make sure the creature was truly dead.
Finn: Is it dead?
Jake: Yeah. I think so.
The creature jumped up and started biting at his neck. Finn splashed water down the neck of the creature, to extinguish it. The creature only lost its head, and started swinging its scythe arms in all directions. Finn used his demon blood sword to cut off a scythe arm as the creature fell dead. Finn repeated stabbed the creature with his sword and cut off it's other arm.
Jake: Woah, Finn hold on, I think it's finally dead.
Finn: At this point, I'm not sure if these things ever die.
Flame Princess: They do.
Finn: Flame Princess! You're ok!
Flame Princess: I don't know what these things are or where they came from, but just one of them was enough to overwhelm my guards. They're pretty brutal and savage, and they make sure that they kill their targets. I've been hiding most of the time.
Finn: Come back to the tree fort. You'll be safer there.
Flame Princess: This is only because here is overrun by weird, walking corpses.
Finn: Yeah. Totally.