Sora and Goofy ran across the shore to the canoes, and saw that Riku's was gone, yet Kairi's was still there. His was nowhere in sight, so he and Goofy hopped in and hoped that Kairi was with them. Goofy rowed as he switched to Wisdom Form, fending off any flying heartless. He was able to see the Invisibles and dispatch them quickly as Goofy struggled to keep the canoe afloat in the churning sea, heading to the main island. Sometimes he wasn't sure if living on the smaller island was such a great idea. "Sora, we're almost there!" Goofy shouts to him. "Keep going!" he yells back. He looks back to see the shore nearby, then something crashes in the water next to the canoe, rocking it.
"What was that?" Goofy asks. Sora looks to the side, shooting a lighting bolt at a Darkball. He only sees inky blackness. But it's moving. "Goofy-" he starts, not able to finishing his sentence as the canoe is tossed up, split in half, and flying through the air. "Yeowwwwwww!" Goofy yelps as something grabs him, threatening to crush his torso. Everything feels so slow, and Sora takes the chance to look at what's under him. He's pretty high up, and sees that this creature is huge, spreading from where the canoe was to almost the shore of the island they came from. Two gigantic yellow eyes stare up at him, and he sees its mouth. Giant, sharp teeth. This isn't a normal heartless. His heart seemed to skip several beets as he stares at it.
He's snapped back to reality by another one of Goofy's yelps. "Crap!" he yells, front flipping to gain his composure and quickly switching to Final Form, slicing the appendage that was holding Goofy, quickly grabbing him and clearing the distance between them and the island. He lands on the shore, and set Goofy down as he reverts to his original form, panting. "Are you.. alrighty, Goofy?.." he asks between breaths.
"Look out!" Riku yells when he pushes Sora and Goofy aside as the large creature sinks its teeth into the ground where the duo were. He rolls as Sora and Goofy bounce on the ground once before getting up. "Quaaaccck!" Donald yells when he sends the biggest bolt of lighting he's seen at the creature. It gives a bloodcurdling screech before sinking back into the sea.
"What the hell was that?" Sora asks no one in particular. "I've only read about it." Donald says, walking over.
"What?" Riku asks.
"We never thought it could be real.. I mean, Heartless are almost unbelievable themselves, and there are so many types. But this we put away as mere myth.." Goofy says, sitting on the ground his head in his hands.
"Does it have a name?" Sora asks.
"Levianthior. It's gigantic with several hundred rows of teeth. It's said it's body mass is a black hole, waiting to swallow everything in its path." Donald says.
Sora looks to the ground where the creature bit at. He sees a giant hole, and shudders. "It's made from the deepest depths of the dark, and is not limited to the sea, but is its favorite place to be." Goofy says.
"I think Ansem told me about this one.. That its creation is a mystery, but if I had to ever encounter it to forget everything and get away." Riku said.
Donald nods furiously. "I never thought it would show up here of all places.." Goofy says.
"Huh?" Sora asks.
"I know how it was created.. Before I was saved by King Mickey way back when, I was a guard for Organization XIII. Before it was widely known." Goofy starts.
"Goofy?" Donald says, sitting next to his friend.
"It was made by the blackest of hearts. The strongest of Nobodies. The deadliest of Heartless. It was never supposed to get out. What happened?" he says, shaking his head, tears dropped from his hands.
"It's alright.. All heartless can be defeated." Sora says, trying to cheer the mood up.
"It isn't a heartless.. It isn't a Nobody.. It's beyond any known form of life or unlife." Goofy says.
"Unlife?" Donald says not sure what to make of the word.
"Undead, I think he means." Riku says.
"But it can be beaten. Right?" he says, wanting an answer.
Everyone stays silent. He takes a big gulp and stares into the sea. "Sora!" he hears from behind him.
He looks back to see Kairi, running towards him. When she reaches him, he engulfs her in a huge hug. "I'm soo happy you're ok.." she says. Her lips reaches up to his and he holds the kiss for a couple seconds. He pulls away. "Donald, I thought you were supposed to put these two on the ship and get out of here?" He says, motioning towards Kairi and Riku,
"We couldn't leave you and Goofy!" he quacks.
Sora smiles and ruffles Donalds feathers. They hear a shriek as the rises, and a giant black figure looms several dozen feet above them. "Dammitttttt!" Sora yells, the Kingdom Key materializing. One of its appendages snaps out and grabs Kairi and Donald. "No!" He and Goofy yell.
Riku's Way to the Dawn materialized as well, and Goofy pulled out his Knight's Shield. Sora was exhausted, and couldn't switch forms. Though, he jumped up, slicing at the appendages that had Kairi and Donald. Riku speedily runs up the body, heading for the head. Goofy uses his Rocket ability and launches at the appendages. Sora can only strike and hope he can cut. Riku strikes hastily at the neck at eyes to no avail. It smashes them all, sending them to the ground. Sand flies high up as they all hit. Sora coughs and sits up, noticing that Kairi and Donald are heading for it's mouth. "No!" he yells.
A small, black hooded figure appears and slices at the appendages, seeming to teleport to Sora, setting Kairi and Donald down. Sora thinks he sees Mickey's bright smile, then he notices his features distort as he teleports back to Levianthior. He slices it all over, and in half with the keyblade he wields. But this one is.. Complete black.. Sora's heart races.
Levianthior simply regenerates. "That's going to have to stop, now isn't it?" a distorted voice said. No.. Sora thinks.
A large ball of black forms around the tip of the keyblade. No..
It gets larger, seeming to swallow the air around it. No..
He shoots it at Levianthior. It decreases in size exponentially. It hits it. There's no immediate effects. Then it starts shrieking, and it seems as though it's getting busting from the inside. Shortly after, it stops shrieking, and just disintegrates.
Everyone stares at Mickey. "King?.." Donald and Goofy ask.
He turns his head only halfway towards them. What they see is a nightmare, and everyone gasps. His skin is black and gray, part of his ear was missing, and his keyblade had a dark aura around it. But worst of all was his eyes.. They were complete black. It seemed like his gruesome smile was glued there. "Well hello, Donald, Goofy, Riku, Kairi.. Soraa." He says ominously.
Sora shudders at the way Mickey said his name. "King, what has happened?" Donald demands to know.
"Know your place, Duck, speak only when spoken to." he replies harshly.
Donald stares wide eyed at the figure that was once his master. "King.. Be nice." Goofy says, standing up.
Mickey disappears then reappears in front of Goofy, kicking him in the face, sending him flying. Sora's Kingdom Key was still drawn, and he swung at him. He blocks, then Riku swings, and he pulls out another blade of darkness, blocking him. "Donald, get Goofy and Kairi and GO!" Sora shouts.
The brokenhearted duck stared at his former king and grabs Goofy's arm, and with Kairi's help takes him away.
The dark aura around Mickey increased, pushing Sora and Riku back. "Mickey, what happened?" Riku demands.
His smile only widens, his eyes grow darker and he lashes out at Riku, who was barely able to block. Sora found enough strength to switch to Valor form and then send several strikes in quick succession to Mickey. He blocks all Sora's attacks with a single keyblade, and is striking at Riku with the other blade. This lasts for almost a minute, Sora's strength quickly diminishing, and he hops back, reverting to his original form. "King, why.. What happened?" he asks frantically.
Riku hops next to Sora, panting. "Come to the darkness. You haven't.. lived.. until you've tried it."
Sora shudders every time he hears Mickey's voice now. "Sora.. Get to the others and get out of here. Now.." Riku says, pulling out his Soul Eater, dual wielding the blades.
"No I can't.." he starts, shaking his head.
"GO!" he says, pushing Sora aside and rushing at the dark Mickey. He stares, then just heeds his word, hoping for the best.
...
Riku just told Sora to leave him be, and he rushed Mickey. What was he thinking.. He stands no chance.. But if he can give them enough time to get away, he'd gladly give his life.
He sends several rays of light from his Way to the Dawn at Mickey, but he deflects each one. Riku rushes at him again, slashing harder and faster than he thought he could ever go, yet Mickey's not even breaking a sweat, deflecting with one blade. "Mickey, what the hell is wrong with you?" Riku asks, as Mickey's holding a block against his blades. "The darkness, Riku. It's a wonderful thing. You know this yourself."
"No!" Riku shouts at him putting more strength into the strike, sending Mickey flying backwards.
He just materializes back in front of Riku and he hastily put your blades in front of him, blocking the slash. "Join us again, Riku, I'm giving you this last chance.."
"Never! The darkness is something I never want to be fully engulfed in again!" he replies.
Mickey steps back. "That's a damn shame, Riku.." he says.
Riku's about to strike again, when Mickey lunges at him, cutting his blades in half and stabbing his dark blade into Riku's chest. Riku stares into his dark, hollow eyes, then down at his chest. His vision starts to blur. The blade is slowly taken out of his chest, then he falls to his knees, torso still straight. "Goodbye forever, Riku." Mickey says, then slashes his blades against Riku's chest, draining whatever life he had left.
This time his senses fade altogether. He's falling back into darkness.. Except this time.. He won't be coming back..
...
They all stare down at the scene from the ship. "Riku.." Sora whispers, tears falling as he leans over the side. Mickey's head snaps up at him, seeming like he had no spine. "Take us out of here, quickly!" Sora shouts at Donald, trying to keep his voice from wavering.
Kairi sits next to Sora, sobbing loudly. Goofy sits in a chair, sad and teary-eyed. Donald never turned back, he didn't want anyone to see him cry either.
Donald closed the hatch then quickly departed.