The Secret Episode begins with Kairi running down to go and wake Sora up. So we know thats from Kingdom Hearts I. Next Aqua observes darkness pouring through a a source of light in the realm of darkness, this could easily be the darkness that consumed the Destiny Islands in Kingdom Hearts I.

 

At the end of the Secret Episode Aqua sees the Castle of Dreams consumed by darkness. This means a considerable amount of time has passed since the Final Episode.

 

And if memory serves me, Nourma mentioned that the Secret Episode connects Birth by Sleep to Kingdom Hearts I.

 

All the figures add up. The Secret Episode occurs at the very beginning of Kingdom Hearts I.

Well the darkness flowing out of the Realm of Darkness could be the destruction of Radiant Garden which happened 9 years before Kh1 but otherwise you might be right.

But, in KH1, doesn't the fairy god mother say her world disappeared too? This must mean less then an year passed.

That doesn't add up for me; If it only took that long for ten years to pass in the realm of light I couldn't imagine Aqua's adventure being that long.

But, in KH1, doesn't the fairy god mother say her world disappeared too? This must mean less then an year passed.

 

Not necessarily. Radiant Garden fell 9 years before KH1. The Castle of Dreams could have fallen at anytime between BBS and KH1.

i always thought the darkness was pooring through to castle of dreams at that part because i thought since the unversed are gone and terranort happened i figured that it signaled how heartless came to be and start to appear and destroy the worlds, though, i s'pose that COULD help the radiant garden argument to, im havin a bit of change of mind here heh heh. and i think the secret episode ends @ kh1, though, i could be wrong, as you see CoM mickey in there but im not sure how reliable that is since mickey was @ the end of deep dive but i dont remember ever seeing him in 358/2 days . . .

its been said that time passes quickly in the realm of darkness. this makes i possible for the events of ten years to fit into such a small time span. i believe Nomura said as much.

Well Sora96, those are all very true statements from the secret episode, but that doesn't mean that it will all just take place during KH1. It will also take place before the events of KH1, during the events of KH1, and after the events of KH1 as well judging by the scenes and the "0.5" that appears which pretty much tells us that it will that it will take place during the time Apprentice Xehanort made Emblem heartless and when Maleficent took over Radient Garden. Besides, if it all took place during KH1 then we wouldn't have seen Ansem the Wise in the realm of Darkness meeting Aqua. So if I'm right, this should all lead up either up to KH:DDD or after it.

But, in KH1, doesn't the fairy god mother say her world disappeared too? This must mean less then an year passed.

 

Basically, you've just added onto my theory. And supported it. Which I don't think you planned to do that.

 

Officially your not supposed to meet the Fairy Godmother until Traverse Town II.

its been said that time passes quickly in the realm of darkness. this makes i possible for the events of ten years to fit into such a small time span. i believe Nomura said as much.

 

Do you remember where you heard that?

Actually I thought that was the darkness that swallowed Castle of Dreams. During the Red Eye battle if you look around the area you can see dead trees covered in darkness that look like they might be the ones seen in that world.