"Hello, Finn the Human."
"Wha-?" Finn looked around the white room. To the side, a panel of black buttons continuously flashed red. The man before him was short with a sort of oval head. His eyes were black, but not the glossy kind. Just...empty.
"We know you have a lot of questions," the man continued. "We will try to explain them to the best of our ability. Now, why don't you try and sit up."
Finn sat up, and then realized that he had moved his arm. Looking down, he saw a replica of his own arm, except that this one was metallic. He studied the movements of his hand. Smooth, fluid, almost...human. He also realized his vision was off, and he he lifted his hand to his eye. There was an eye patch.
"We?"
Finn looked around. There was no one else in the room.
"Yes, we are the Seekers. Ones who wish to study this planet. But a crisis looms before it. A dark power threatens to overtake your world, and a new one will eventually birth, not unlike the way Ooo changed over the last thousand years. We find what has happened fascinating, and we wish to study Ooo longer. That is why we are helping you."
"But what is it you guys are studying?"
The alien, who had a creepy smile up to this point, changed his expression slightly.
"If you knew that," he said. "Then we couldn't let you go. We trust you want to go back to your friends, and continue the battle. Don't mention any of our names when you get back."
"But," Finn stated. "You haven't given me your name."
The alien regained his smile.
"Then that won't be a problem...will it?"
With that he went to another room, and came back within a few minutes.
"Here take this as a gift, for the inconvenience. It's a special sword. The Kouvier Blade."
He gave Finn what looked like a sword with a gaping black hole in it. Right at the top of the hilt. The sword itself was pearl white.
"What is this sword?"
"It's a sword that infused with its user's energy. It 'feels' it's user's intents and emotions. It feeds off stamina and the will to live. Try it out. It has three levels."
Finn practiced using his sword. A peculiar thing, Finn's sword suddenly grew slightly longer, and sharper.
"Oh," said the man. "I guess you were intending to kill someone."
Finn ignored the comment and continued with his practice. It felt normal. that is until a yellow spark came from Finn's metal arm. The spark ignited the black hole, and Fin's own energy gravitated towards the black hole.
The energy then exploded, creating a yellow ball of energy where the black hole was, and a thin yellow coating covered the sword. The coating was strong and sharp, and Finn recognized it as his own energy.
"The second level..."
"Careful," the man cautioned. "The sword feeds off of your energy and stamina. It will only last as long as you do."
With that, he led Finn to a teleporter and sent him back to Ooo.
"I'll miss that boy. At least he lived a good life."
Finn landed back on Ooo. The first thing he noticed was the disappearance of Jake, Marceline, and Ice King. What he did notice was, like Flame Princess earlier, several citizens of the Slime Kingdom who had fled from the monster looked defeated and tired.
He turned his attention towards a blast of air in the distance. He knew what to do now. He ran towards the disturbance. Finn would use all he remembered to fight this monster.
'What had happened?'
That's what Water Princess thought to herself as she watched the monster tread towards the Water Kingdom. But then, out of nowhere a burst of flames brought her out of her thoughts. A raging ball of fire smacked straight into the monster, knocking it over. Only when the monster's crystals started to glow blue did she realize what- or rather, who- it was.
It was Flame Princess. She had turned into a giant inferno. She was obviously angry about what happened to her kingdom.
However she noticed that Jake, Marceline, and Ice King were fighting the Keeper, the evil man that had cut off Finn's arm. She gazed in that far direction with disdain.
She didn't want to get involved, despite her water powers, with an unstoppable force like those enemies. So she stood there. That is, until she noticed Finn running up to her. Barely after any time had passed, and yet Finn had already recovered from his severe injuries. The first two thing she noticed about him were the same things Finn first noticed: his eye patch and his metal arm. Then, she noticed his sword.
When Flame Princess saw him, she stopped, as did everyone else. It had hardly been any time at all, and yet Finn looked like he had made a full recovery. He had a prosthetic arm that shouldn't have been able to be made in such a short time. He had a new sword too. It was pearl white, with a black hole at the top of the hilt. Overjoyed to see him, his friends rushed to see him, momentarily stopping the fight.
"Finn!" Jake shouted. "You're okay!"
Finn only nodded, his vision still a bit off on account of only having one eye.
He turned toward the direction of the Keeper, who greeted him with a smile.
"The Kouvier Blade," said the Keeper. "That's a fine blade, one I've searched for, for a long time."
Finn activated the sword's energy, and the sword gave a red spark. The pearl white was changed to a charcoal black, and where the yellow light usually was, was replaced by a red ball of light, it's rays shining on the sword. He swung towards the Keeper, but, like before, the Keeper only dodged his blows.
The Keeper continued to graze Finn's body with his own sword. Finn's sword began to grow longer and sharper. However, it did little against the Keeper. The Keeper was about to land a hit on Finn when his sword was grabbed by a stream of water. The Keeper took one look at Water Princess and smiled. From behind, Water Princess felt a burst of heat.
It was Scorcher, and unlike last time, it wasn't about money, but power. Finn held off the Keeper, leaving Water Princess to battle Scorcher, while Jake and Flame Princess battled the monster, and Marceline and Ice King battled a hoard of Cave Dwellers.
A few moments later, the Keeper's right arm bursted into flames, his limb now just bones. Finn looked over, and noticed that he had radioactive sludge on his hand, the influence of evil power now literally within his grasp, Keeper shot a green fireball at Finn.
Finn dodged, while Flame Princess again burst into an inferno and charged the Keeper. This time, however, she had the help of Ice King. Finn went to help Water Princess, who, of course, was not the best at fighting. Jakewas still holding off the monster, and Marceline held off the waves of Cave Dwellers.
But, suddenly, a blue spark came from Finn's metal arm into his sword. The sword inexplicably powered down, and began liquefying. The now liquid metal seeped into Finn's metal arm. His arm transformed into the Kouvier Blade, and Finn found he could now instantly change between his arm and the sword, now not having to worry about being disarmed.
Finn charged the sword to full power, and with all of his energy, charged the monster. He dug the sword into it's back, and it fell, its crystals turning clear and powering off.
"One down, a lot more to go."
