After defeating Hewdraw, the second of Medusa's commanders of the Underworld Army, Sora, Kairi, Pit, Pikachu, and Angel have arrived to Skyworld. The Skyworld is similar to the land down below. Sora whistled in amazement.

"Talk about a long way down," Sora said.

"That's if we take one, careless step," Kairi said.

"Eevee," Angel said.

"Pikachu," Pikachu said.

"Welcome to Skyworld. So good to be home again. The way to Lady Palutena's palace should be down this road," Pit said.

"Yeah, and so would be the Underworld Army and the Heartless; and that's if they're here," Sora said.

"If I was a gambling woman, I would bet the farm that they are with our luck," Kairi said.

"Yeah, and you'd win the bet," Sora said.

"Well, we better get going just so you could collect on your winnings, Kairi," Pit said.

Sora, Kairi, Pit, Pikachu, and Angel started to make their way through Skyworld, keeping an eye opened for any signs of the Heartless and the Underworld Army. So far they haven't seen any signs of them. But that changed when several flying Heartless. The Heartless were Search Ghosts, Trick Ghosts, Gargolyles, Flutterings, Wyverns, Angel Stars, Hook Bats, and a few new Heartless.

One of them has the slight resemblance to the Imp, but it is dark red and slightly bigger than the Imp. It has large arms with dark red claws. It has large wings that is bigger than its body. This Heartless is known as the Air Imp.

Another Heartless has a strong resemblance to a harpy, but has the body like the Shadow. It has feathered wings on its arms. It also has bird-like legs and the Heartless emblem is located on the chest. This Heartless shall be known as the Harpy.

Another is a large griffin-like Heartless. It has an eagle's head and a black beak. It has large brown wings and the body of a white lion, but it has its claws visible. It has bat-like ears and yellow eyes. The Heartless emblem is located on its chest. This Heartless shall he known as the Gryphoon.

Sora, Kairi, Pit, Pikachu, and Angel started to engage the Heartless. The Harpies came down and swooped at them with their talons, but Pikachu fired Thunderbolt, shocking them. The Air Imps swiped their large claws at them, but Kairi casts her magnet spell, pulling them all in, so Angel finishes them off with her Swift.

"Nice shot, Kairi," Sora said.

"Thanks, Sora," Kairi said. "I think we better press on forward."

"Yeah, let's go," Pit said.

With that said, Sora, Kairi, Pit, Pikachu, and Angel continued on their way. They weren't aware of a blue worm-like creature watching them. It has purple wings on both sides of its head, a purple underbelly, and a large red eye. This creature is known as a Phil.

"Better tell the others," the Phil said.

Meanwhile, a being that is seeming to be made up of a ghostly blue fire appeared. She has a set of sharp teeth and wears a semi-translucent ring on top of her "head."

Just then, a being resembling a Centurion wearing a bulky gold armor has entered. It wore a red cape. This is a Collin.

"Lady Pandora! Lady Pandora!" The Collin said.

"That's my name, don't wear it out. Anyway, this better be important," Pandora said.

"One of our agents has spotted the fugitive angel and the Keyblade wielding human children. Apparently, they have defeated Hewdraw and they're in Skyworld as we speak. They already defeated a squadron of Heartless," the Collin reported.

"So now two of the Sacred Treasures are in their hands, and they'll be coming here to claim the third one," Pandora said. She chuckled. "Oh, this should be loads of fun. Send a handful of our troops after them, and make sure they find their way here. I want to finish them off before they get to Medusa."

"Yes, Lady Pandora. At once," the Collin said, taking its leave. It grabs two cannons and flew out of Pandora's lair. The Collin met up with a handful of the Underworld Army.

Among them is a Pluton with wings; so this is a Pluton Fly.

Another is an orange octopus-like monster with yellow accents, light purple eyes, and a red cap on its head. This monster is known as the Octo.

"What's up," the Pluton Fly asked.

"Lady Pandora has given us the order to attack. She wants to finish them off herself, but let's make some effort in taking them out before they get to Pandora's lair and say that we tried," the Collin said.

"We can do that," the Octo said.

"Go gather the others. Let's make them feel welcome," the Collin said.

With that said, the Underworld soldiers stationed in Skyworld started to make their way towards Sora, Kairi, Pit, Pikachu, and Angel.

Back to Sora, Kairi, Pit, Pikachu, and Angel, they ventured through Skyworld, keeping their eyes opened for any signs of the Underworld Army and the Heartless.

As luck would have it, a swarm of Shemums flew their way towards them like a swarm of hornets. Following them are Collins and Phils.

"Here they come!" Pit said, readying Palutena's Bow. Sora and Kairi summoned their Keyblades.

The Phils unleashed a poison cloud at them as the Collins fired from their cannons. Sora jumped and swung his Keyblade at one of the Collins as Pikachu fired Thunderbolt, shocking the Underworld soldiers.

A cactus-like creature emerged from the ground, appearing to be made out of sand. These are known as Holers. The Holers fired their projectiles right at them, but Kairi quickly casts her reflect spell, making the projectiles back at them. Pit fired right at the Holers, taking them out.

Heartless, Reapers, Reapettes, Eggplant Wizards, Specknoses, Monoliths, and some creatures resembling Kobils came at them. They have much larger wings than Kobils, and they held spears. These are known as Keebahs. The Keebahs charged at them with their spears, but Sora casts a thunder spell as Pikachu fired Thunderbolt at them, so they fell out of the sky.

Coming at them from above are yellow, spherical creatures with orange cores at the center. They have sharp spikes on four sides. These are monsters known as Tros. Pit took them out by shooting at them.

Several Octos swarmed at them, but Angel fired her Swift at the octopus-like monsters. But they're followed by light blue, gelatinous creatures with three pink-red spheres in the center. They have vein-like fibers connecting from the spheres to the surface of their skin, and two sets of mandibles located near the bottom. These creatures are known as Komaytos.

"Metroids?!" Sora exclaimed.

"Those are Komaytos! Watch out, because they drain the life out of anything they come in contact with!" Pit warned.

"Thanks for the tip!" Sora said, firing his blizzard spell at them, freezing them in place. Pit finished off the Komaytos with his arrows as several Pluton Flies flew at them, but Pikachu and Angel fired their attacks at the flying monsters, taking them out.

Out of the blue, several dwarfish creatures came out and spewed fireballs at them. They wore a Greek garb and they had brown beards and wore sandals. These are known as Uranos.

Sora and Pit jumped above and took out the Uranos.

After the intense fighting they have been doing they have taken a needed rest to recover their strength. After having some rest, they came across a fortress stationed in Skyworld.

"That's gotta be where the third Sacred Treasure is kept," Kairi said.

"Eevee," Angel said.

"Yeah, and judging by how this looks, I would say Medusa has placed Pandora in charge here," Pit said.

"Pandora?" Sora asked.

"Pandora's the Goddess of Calamity. And I think she knows we're coming, so she might have some nasty traps set up for us," Pit said.

"That means we're gonna have to do some fighting," Kairi said.

"Looks that way," Sora said.

"Chu," Pikachu said.

"Vee," Angel said.

With that said, Sora, Kairi, Pit, Pikachu, and Angel entered Pandora's lair and they prepared for another rumble. Upon entering, they came across several Gargoyles and Air Imps. They fought their way through the Heartless as several Phils and some Sheemums came out and attacked.

They fought their way through the lair and they eventually found Pandora herself.

"Well, well, well. What do we have here? The Keyblade holders and the angel that got away. I was almost starting to think you'd never come. I was so happy to be wrong about that," Pandora said.

"Listen up, Pandora! You're finished here!" Pit said.

"Wrong! You're the ones who are finished here! I'm gonna bury you in the rubble!" Pandora said as she starts her attack by firing fireballs at her enemies, so Sora rolled out of the way to dodge as Kairi casts her blizzard spell at her. Pandora wasn't impressed. "Ice? You're off your element, aren't you, red?"

"Can't blame a girl for trying," Kairi said.

"No, but let's see how you handle this!" Pandora created several bombs, so Pit kept on firing his light arrows at the Goddess of Calamity as Sora came at her as Pikachu fired an Electro Ball, hitting her. The fight between them was a fierce one, so Pandora took out a little something. "I wasn't even going to use it, but here you go. I have the Mirror of Truth!" She revealed a mirror. "It reflects the truth in the hearts of whomever is looking at it. Why don't you take a peek at it, Pit?" She points it at Pit, so knowing what he had to do, he rushes over to the mirror to destroy it, but his reflection has a hint of darkness, so another Pit came out, much to the surprise of Sora, Kairi, Pikachu, and Angel.

"What the-" Pit paused.

"Two Pits?!" Sora exclaimed in shock.

"Hey," the other Pit greeted.

Like Pit, he appears as a young teen with narrowed red eyes and short, black hair. His black chiton is decorated with purple and gold trimming, and it is fastened on the shoulder by a golden fibula with a purple gem in the center. He wears a purple belt with gold lining the edges and a gold, triangular buckle on his waist. He also wears black tights under his chiton, which are trimmed with gold. To adorn his outfit, the other Pit has a pair of black and gold cuffs around his forearms, and singular gold rings on his upper left arm and right thigh. His black sandals are decorated with crossing, gold bands, and are edged at the top with gray fur.

"Let's get right to introductions. This here's Dark Pit. He'll be your escort out of this life," Pandora said, earning her a punch.

"Speak for yourself," Dark Pit said. Pandora just growled in anger.

"You fool! You were created to serve me! Those are your opponents! Not me!" Pandora exclaimed.

"You expect me to fight a loser and a couple of kids? You're really pathetic, you know that?" Dark Pit taunted his creator. Pandora growled in anger and turned red to match her anger.

"That's it! You are FIRED!" Pandora roared as she unleashed her fireballs and bombs at Dark Pit, but he fired his own Palutena's Bow and it fired arrows of darkness instead.

Taking advantage of the situation, Sora, Kairi, Pit, Pikachu, and Angel engaged Pandora with their attacks.

"Take this!" Sora said, swinging his Keyblade at her and sends her flying.

"Here it comes!" Pit said, firing an arrow and finished her off. "And that's that!"

"Took you long enough," Dark Pit added.

"Pandora's down, so the third Sacred Treasure should be around here some-" Pit was cut off when Dark Pit gave him a flying kick, sending backwards.

"Pit!" Sora exclaimed.

"Pika!" Pikachu also exclaimed.

Sora and Pikachu rushed to Pit's side and stood over him. Sora just glared at Dark Pit.

"Why did you just do that?" Sora asked.

"Hmph. It's because he was ripping off my look," Dark Pit said.

"I'm the original here," Pit said. Dark Pit heads over for Pandora and jumped right through her.

"What are you doing?" Kairi asked.

"Just making sure Pandora's powers don't go to waste," Dark Pit said as a blue aura surrounds Dark Pit. He then starts to fly. "Go take what you came here for and go!"

"He can fly?!" Pit exclaimed.

"If he can do that, then he could be loyal to Medusa," Kairi said.

"Eevee," Angel said.

Just then, a chest floats down to Pit. Knowing it was the third Sacred Treasure, he touched the chest. The other two chests appeared and they opened to reveal themselves. The contents of the chests were an arrow, but so much stronger than the ones Pit already uses, a shield that appears to have a mirror's surface, and a pair of large wings.

"Are these-?" Sora asked.

"The three Sacred Treasures! The Arrow of Light, the Mirror Shield, and the Wings of Pegasus! Now to put these to good use!" Pit said as the Sacred Treasures have shined onto Pit, granting him a knew armor. He wore a golden Spartan armor. He carried a large bow and his wings are longer than before. "Now that I have all three Sacred Treasures, I'm taking the fight to Medusa!"

"And we'll find the Keyhole!" Sora said.

"Pika!" Pikachu said.

"Let's go!" Kairi said.

"Eevee!" Angel said.

Over to Medusa in the Palace in the Sky, Medusa has gotten wind of Pandora's defeat.

"So Pandora was defeated as well," Medusa said. She knew for certain Palutena had something to do with it. She confronts the Goddess of Light in her cell. "I know this has your stink all over it, Palutena!"

"Stink? How rude. I was just finished with my bath when you and your army invaded, Medusa," Palutena said.

"Don't play dumb, Palutena! I know you had something to do with this! Only you could have given him that bow!" Medusa accused. She was about to say more when she made a shocking realization. "And you know the Keyhole is here in the palace." Palutena became nervous.

"I don't know what you mean!" Palutena quickly denied. Medusa didn't buy it.

"It is here! I should have figured it out from the start. The Keyblade wielders will be coming for it, so they can lock it up. Oh, but we can't have that," Medusa said. She chuckled. "Thanatos!" Thanatos appeared before Medusa.

"You called for me, my lady?" Thanatos asked.

"Yes, the Keyblade wielders and the angel are on their way, and we don't want them to find the Keyhole, so keep them busy," Medusa said.

"Sure thing, Lady Medusa. You can count on me!" Thanatos said, vanishing. Medusa chuckled again.

Now that all three Sacred Treasures have been found, all that's left is to defeat Medusa, Thanatos, and seal the Keyhole. Will Sora and Kairi find the Keyhole before Medusa does? Find out if you wanna find out.