It was over. They finally did it. Sora and Riku had finally defeated Organization XIII and their leader, Xemnas. It took them so long, but it all payed off in the end. The threat was over. Unfortunately, their victory hadn't come without sacrifices. During their battle with the organization's leader, it seems he had transported them to a space between worlds, a place of nothingness. After Xemnas and the nobodies that followed were defeated, the two pressed on, with Sora having to help steady Riku due to a wound that Xemnas inflicted on him. After a little time, they came across a strange light that enveloped the duo.

When the blinding glow cleared, they saw a beach, devoid of alllife, and entirely lit by moon light. It only took a second of looking around to guess where they were. It was the realm of darkness. This wasn't a world like what they had been traveling during their journeys. Those were all a small part of of the realm of light. This was another realm entirely. And from the looks of things, there was only one world in this domain.

They both sat near the water, waiting for a time, when Riku noticed a bottle at the shore. He picked it up, and pulled the note that was inside out. He read it for a second before getting Sora's attention.

"I think it's for you." Was all Riku said. And so Sora began to read.

Thinking of you wherever you are.

"We pray for our sorrows to end,

And hope that our hearts will blend.

Now I will step forward to realize this wish.

And who knows:

Starting a new journey may not be so hard.

Or maybe it has already begun.

There are many worlds.

But they all share the same sky-

One sky, one destiny.

Kairi

Upon finishing the letter, a column of light rose from the water, much to the shock of both Sora and Riku.

"Light." Was all Riku said.

"The door to light." Sora agreed. Though it was unspoken, they both knew where the door lead. It was their road home. The wielder of light was ecstatic. They could go home. Finally! It had been so long! He would finally be able to talk to Kairi without the worry of some evil destroying all the worlds!

At least, that's what he should be thinking. And yet... Some part of him was worried about the danger this realm presented. What if someone managed to successfully open a way into this world, with all this power left unchecked? He had to keep the danger here at bay so no one could ever tap into the power that lay here.

But first, hehad to make sure that Riku left. He more than anyone else was susceptible to the darkness that lay here. To mask his intentions, he jumped to his feet, offering his hand to the former wielder of darkness.

"We'll go together." Sora lied. Riku, not seeing through the ruse, smiled and took his hand, and let himself be pulled and they walked. When they were but a few feet from the portal leading home, Sora stepped back and shoved Riku forward, watching as the light enveloped him, and then he was gone.

It was just Sora, now. The door was still open, and he could go home if he wanted. He thought about Roxas, to whom he made a promise to stay with Kairi as much as they could, so that he and Namine wouldn't be apart.

It's alright. I understand. He heard echo across his mind. He knew in his heart that it was Roxas. The door began to flicker, shrinking a little, as though asking if he was coming.

"Sorry, Kairi, but it looks like I won't be making it home. Take care of her and the others, Riku." He said. As he finished, a keyhole appeared in front of the road home. He summoned his keyblade, and he locked it, causing his only known route to his home to disappear. He smiled, knowing that his friends were safe. It was his job to keep the heartless from leaving this world, and he would uphold it as best as he knew how. Having steeled his resolve, he turned his back to the beach, and walked further into the darkness.