Disclaimer: If you recognize it as Disney or Square Soft's then it's not mine. This goes for the whole story.
There will be MASSIVE BBS SPOILERS if you don't like it please turn around.
Kingdom Hearts RE: Birth by Sleep
Prelude: The Stranger
DISNEY CASTLE...
His highness King Mickey of Disney Castle sat in his oversized chair at his oversized desk in a rather vain attempt to get some work done. It had been almost a year since he had returned from his adventure and he was glad to be home but that didn't stop the feeling that it was not over from nagging at the back of his mind. There were simply too many lose ends; too many skeletons left unburied to give the situation any form of resolution.
"You're not the only one that feels it' the undeniable truth that your adventure is not over. The only question now is what are you going to do about it?"
Mickey looked around but there was no one there. The library was empty. Besides, rather than being Donald's squeak or Goofy's drawl, the voice was not one he recognized.
"Who are you?" The mini monarch demanded.
"A friend." To punctuate the response the voice allowed its body to manifest form a dark portal wearing an Organization XIII trench coat. Although Mickey knew that the apparel did not automatically mean one was evil, it did nothing to gain his trust.
Mickey drew his key blade but kept it hidden under the desk just in case. The figure didn't notice it, or if he did, pretended not to. He began to walk around with his hands in his sleeves as he distractedly examined Mickey's collection of books.
"It is time for the lost two to awaken and the Chasers to be given another chance at that which was robbed of them." Whoever he was obviously didn't notice Mickey's confusion because he didn't explain.
"Ansem the Wise has already been taken from the Dark Realm and placed in Radiant Garden where he belongs. Soon the heartless will attack Destiny Islands and all pawns will be in place."
"Sora! Riku!" Mickey exclaimed in worry for his friends, "and what do ya' mean 'pawns'?" Mickey demanded but was again ignored.
"Tell me this though, you knew Roxas had a heart and yet you said nothing. Not to Ansem. Not to Riku. Why? Was it because to explain how it got there and why you said nothing you would have had to explain the Chasers' story? You knew that if the truth was known then they would have tried to save Terra as Riku was saved." Although the words were an accusation the tone was not.
"Save Terra? But he's dead."
"It would seem Aqua didn't fill you in on the complete situation before she left on her mission. Pity. A little bit of knowledge often goes a long ways." The stranger muttered before disappearing again into the darkness, leaving The King to do what he knew he must. Taking a deep breath he reached into the drawer of his desk and pulled out a fresh sheet of paper and a glass bottle.