Note: Adventure Time characters are owned by Cartoon Network and Pendleton Ward. However, those new characters that you read are obviously mine. Just saying.

Enjoy!

The Heroes' Fall

At the Land of Ooo, in his Ice Kingdom, Simon and the Ice Queen have a great time playing ping-pong in his basement. The pale blue woman enjoys swinging the racket. For her, it felt like swinging her ice sword to Fionna's idle body. "This is fun!"

"I know right!" Simon smiled. "Our score remains the same for ten minutes now."

"Yep."

Nearby, Gunter and the penguins were standing near the empty scoreboard. The penguins grew tired of waiting their master and the lady to get a score. Few left and went outside to have fun on the snow land.

Then all of a sudden, a powerful sphere of yellow light appeared between the two, interrupting their game. "Hey! What's the meaning of this?" However, a person emerge from the light. The Ice Queen immediately recognized that person. "Fionna!" She turned to her counterpart. "Quick! Go back to you cell!" The old man quickly marches away.

Ice Queen then noticed the wounded Fionna, her right arm was burned. "What happened back there? Where is Gumball and the others?"

The heroine cannot speak yet after she saw the vast power of the nine. She has never ever seen such power, destruction and death before in her life. It is much greater when she battled the Lich Queen. Because of the nine, the realm of the Nightosphere was no more. Fionna can't do it. She is just a girl with a sword and they are entities of infinite power. She even asked herself how can she defeat them.

Then the Ice Queen repeated her question, "Fionna! What happened to my precious Gumball?"

==Few Minutes Ago==

No one has ever felt frightened before than Hunson Abadeer who retreated back to the Nightosphere immediately, leaving his demons and the others in the PIT. He has no choice but to do what needed to be done for the sake of the entire Reality. He locks the closet and puts on the red chains back.

The nine looked at the people in the PIT who were scared enough to move or do something. One of them with skin made of hard molten rock moved forward and presents himself to everyone. "Hello everyone. We are... Men of All Things. And we are about to show you how happy we are now that we are free." The other eight have terrifying features that paralyzes a demon or a fire elemental with fear. They have never seen such disfigured creatures before or even imagined such appearance.

Flame Princess keeps her flame sword on. She still has some little fight in her. The princess turned to Fionna and both of them knew what they are thinking. The girl turned to the pink prince, "Gumball, find a way out of this PIT. The princess and I will hold them off."

But her friends refused to leave her. Cake and Marshall Lee stayed; so we're Flame Princess's loyal fire soldiers. They all stand beside their champions. The nine were fascinated to see such courage. "I'll be with you until the end, girl." Cake said.

"Me too." Marshall Lee showed her his simple smile, giving her confidence.

Fionna gave the prince one last request, "Gumball, you must go. You are the smart one. Find a way to stop them before they take all of Reality. Promise me you'll do it."

"I promise." Then the prince joined the other demons who were running to the dark passage to escape.

"Oh, you won't get away that easily." The nine flexes their limbs and ready for a fight. There bones made a snapping sound, which shows how long they have been imprisoned. "You know, one human said that he can defeat us without the help of the Cosmic Gods. Ha. We really underestimated him. Now that we have learned our lesson, we will use everything we have to take you all out."

As the prince heads to the exit, a creature blocks his way and the other demons in great speed. Gumball saw the horrible disfigured face of that creature. Its head has no eyes, nose or ears. It just has one big mouth with a nasty smile. Gumball saw its tongue trying to get out from its four inch razor teeth.

When Marshall Lee saw that creature standing near his friend, he then remembers his mother's stories about that creature. The vampire yelled to the prince. "Gumball! Stay away from him!"

The molten entity smirked, "Go ahead, brother. Say the forbidden word."

The monster opened its big razor mouth and spoke the word. Seconds later, it echoed across the outer core of the earth and caused strange tremors around the place. A sudden struck of lightning pierced through the Nightosphere and completely shines it with its blinding light. "Gumball!" Fionna screamed, reaching for her friend. Before anything happens to him, Gumball made a wish to the cube. "I wish to send her safe." Then the prince threw it to her. The light swallowed him and he's gone. And then the light touches her arm and a burning sensation quickly spreads around her useful arm. Marshall Lee grabbed her and threw her away from the light before he was swallowed by it.

In mid-air, the cube brights up and sends Fionna away from the dark realm.

Everyone in the Nightosphere vanished in the bright light. Cake, Gumball, Marshall, Flame Princess, the fire elementals, the demons and Hunson Abadeer were all gone. The Nightosphere has fallen.

==Few Minutes Later==

The Ice Queen burst in tears after hearing the story. The woman cried a lot like a baby who just lost her ice cream. She grabbed Fionna in rage. "Why did you left him? Why? WHY?"

Fionna pushed the queen away and responded in grief. "I tried! But it's too late. He's far away!"

"Then what happens next?" Simon has been eavesdropping. He, too, was worried about her friends. "What are you planning to do?"

"I have no idea. I don't know." Fionna answered, despite the fact the prisoner is free. She doesn't mind anymore. "Any ideas, old man?"

Simon scratched his large beard while thinking. "Let me see. We can go back to the Candy Kingdom. Princess Bubblegum has some cool stuff there that we might use."

The human girl then agreed with the old man. "Alright. Take us to her cool stuff."

Back to the Land of Uuu, the four citizens of Ooo entered the castle and meet up with Princess Bubblegum; she's very busy making some tests to the cube. Marceline and PB were a little nervous to see the princess with a human skin. But Finn and Jake doesn't mind; they liked it. PB coughed, clearing her throat just to get her attention to her Uuu twin.

The princess turned and saw the four. She was surprised to see them but what most surprised her was to see Finn. "You're alive?"

Then that flame kid comes in and greeted the princess. "Hello, auntie Bonny."

"Aunt?" Jake said, wondering what the kid might call his Uuu counterpart.

"Auntie, they are not from around here and they need you help."

Incredibly, the princess accepts to help and her shock to see the four just fades away. She simply asked what happened. "Thank you, Pen." The princess patted the boy's warm and golden flame hair. "So, you are not from around here and you wanted to go home. But first, tell me how did you get here."

Jake makes a quick summary of their situation. "Alright, the Ice King stole a cube. He made a wish. A portal opened. Six of our gender-swapped counterparts appeared. We are later captured by our counterpart and trapped in a distorted prison inside their own version of the cube. We escaped using that same cube that Ice King used. And then we are here... on the Land of Uuu."

The princess thinks about the story. They were pretty strange but she needs proof. "Do you still have the cube?"

The cube's in his pocket, Finn takes it out and gave it to the pretty human princess. She analyzed it thoroughly with her device until she got the results. In amazement, the cube has the same energy signature with the cube that they were testing. Both cubes were completely identical. Now the mystery that they must ask themselves, what is the secret of this cube?

Princess Bubblegum of Ooo made a theory, "I think that the cube has some counterparts and combining them can be dangerous."

"What if we combine these two?"

"Have you heard what I said?"

"Yes. But that is a theory. We should try combining them."

Assuming terrible things will happen, she asked Finn, Jake and the kid to leave. "Wait outside, boys. Also you, Marceline." The vampire girl follows the young boys out while the two princess are about to fuse the two cubes together and hoping for a good result. Finn was a bit worried. "Do you think it will be safe?"

The vampire shrugged. "Don't ask me. I'm not a scientist."

In the lab, PB's twin took the cube's counterpart from the testing machine and prepares to combine it with the other cube. "Ready, sister?"

"Sure." PB puts on the goggles to protect her eyes from extreme light. "Do it."

Bonny slams the cube together and then a powerful yellow light illuminates the entire kingdom. Combing the cubes has caused a reality quake that flows all over the multiverse.

Elsewhere, the powerful wave of reality distortion leaves hundreds of tears across reality and it reached to the edge of the multiverse. As it stopped, the wide cosmic wall that protects all realities opens a small crack. Then an entity from beyond forced itself through the crack, ripping the fabric of reality like paper. As the entity enters the multiverse, its forms changes into a beautiful figure of a young woman.

Her body was made of infinite numbers of stars and planets and her long hair flows like a comet's tail. When she saw the five realities in that multiverse, her eyes opened wide like two full moons. The new cosmic entity saw something that made her smile. "There you are..."

TO BE CONTINUED...