Hey guys next chap is the last! I have two ideas, I'll make a one shot sequel to this. Also,do you guys think I should write an evil alternate ending. I'm also gonna make a Sonic fanfic, and I already have some ideas for pairings so if you guys have any pairings,let me know and I accept yaoi and yuri.

Marceline waited, but nothing happened. She opened her eyes and saw something in Finn's. She saw...conflict, as if he was struggling to attack her."Run.", he said, his voice trembling. He released his grip on Marceline and she ran. Finn clenched his head, pressure obviously building within him. He let out a scream of pain,"Aaahhhh, get out of my head!"

"What?!", echoed the demon's voice within Finn's head."You're fighting the control?!"

"G-get out!" Finn slammed his fist into the ground, yelling in agony. It was clear he was in unbelievable pain. He collapsed to the ground,and the group, even Hunson,rushed over to him. They took him and checked his state. He was hooked up to life support and the group hoped for the best. Hunson broke the silence,"Marceline I'm sorry for freaking out."

"It's fine, I shouldn't have done that with him."

"Done what?", asked Jake.

"W-well I slept with him."

"You slept with him?!"

"Y-yeah."

"Well did you use a.."

"We used protected sex.", she said blushing.

"Oh thank goodness."

"Well, if he survives, he has my blessing to be with you.", said Abadeer. They turned their heads to Finn,if,was the key word here. They weren't sure what was happening to Finn.

Finn was in a place that he was unsure of. It didn't look like anything he had seen before. It was dark and strange. Suddenly the demon appeared before him."Ah I see you're still alive."

"Where the hell are we?!"

"We're in your mind. If I kill you here, I can go on without you disturbing me."

"Well that's not going to happen!" Finn rushed at the demon, but was immediately thrown back."I have full power in here. There's no way you can beat me."

"That won't stop me from trying!" Finn tossed his sword at the demon, but the demon teleported behind him. Finn was slammed back,and pounded into the ground. The demon threw him,and Finn landed with a thud. He stumbled to his feet but was immediately slammed back into the ground."Did I say you could get up?",said the demon. Finn was thrown to the side, and he coughed up blood. He knew this was going to be a hard battle.

Jake stood there watching Finn. He couldn't believe this morphed creature was his brother. He was worried,what if Finn wouldn't wake up? What if he meant what he said about the people he had killed? What if he wouldn't be the same if he woke up? These questiones raced through his mind. He noticed Finn's pulse had slowed down, and without the life support, he would probably be dead.

Marceline hovered in the corner, thinking similar thoughts. She wasn't sure if Finn was going to wake up or not, and she had nearly cried earlier. She was Suprused that her father approved of their relationship, but she didn't know if she would get to enjoy it, given Finn's current state.

Finn was thrown into the air and blasted by fire. Before he could land, the demon caught him and chucked him several meters."Feeling tired yet?",asked the demon. Finn looked at his wounds. They were definitely fatal, and he knew he wasn't going to win this fight. But he wouldn't give up, he would fight to his last breath. He stood up, took his sword, and he prepared for the last battle he would ever fight. The last battle.