Author's note: The way this was going, it getting pretty long. I'm editing it into two (or more) parts so it's easier to read. Thanks for the support!
(Axel and Saix enter the big throne room seen from Roxas's flashback. Xemnas is seated on the highest throne, hoodless, lamenting how full of woe and agony his life is. Jeez, no wonder these guys wear black all the time. Coincidentally, Axel's throne is just across from his, but two feet lower. Saix's right next to Axel's and has barley a few inches on it. Nevertheless, as they ascend their respective thrones, Saix acts like it makes all the difference. Xemnas stares at Saix icily.)
SAIX
You may continue, my lord.
XEMNAS
I would if someone took their leave.
SAIX
(Stares at Axel)
AXEL
He means you, Sherlock.
SAIX
You never let me do anything fun. (He teleports away.)
XEMNAS
So, Axel…
AXEL
Um, yeah….that was awkward wasn't it? Saix always was the odd one out. I mean, you know, why is he number seven anyway? I would be-
XEMNAS
Axel, you're babbling again.
AXEL
(Blushes) Heh, yes, your Superiorness.
XEMNAS
We're Nobodies, Axel. No emotion, no heart, nothing. Remember that.
AXEL
(getting his confidence back) Well, it's kind of hard to forget.
XEMNAS
Now, to the meat of the matter. (Leans in, unblinking) Where are the others?
AXEL
They're all dead M'lord.
XEMNAS
Who killed them?
AXEL
Do you want the novel or the cliff notes?
XEMNAS
I have nothing but time.
AXEL
Okay, from the top then. It was a dark, starry night-
XEMNAS
Preferably within Castle Oblivion.
AXEL
Fine then. First, Marluxia did the spooky wise man thing and lured Sora and company to the castle. Then, Vexen activated the mind wipe and they forgot all their attacks It was fun. Luxie showed them the ropes and got them through the first memory.
XEMNAS
As was planned. Continue.
AXEL
So, then I got a turn to fight the kid.
XEMNAS
How'd it go?
AXEL
I went easy on him.
XEMNAS
He obliterated you, didn't he?
AXEL
Not my choice of words, but he came out on top that time.
XEMNAS
And just after he lost his attack memory. Shame on you, Axel. (Raises hand as if to do something really not good)
AXEL
(holding up hands in defense) Do you want to kill me or hear the rest of the story?
XEMNAS
(lowers hand, deadly serious) I was joking, Axel. Continue.
AXEL
(Still weirded out by his boss's sense of humor) Okay then. Well, here's the twist. Sora wasn't alone in the castle. Later, in the basement floors, Riku appeared.
XEMNAS
Ooo, interesting
AXEL
His memories generated a corporeal version of, well, you.
XEMNAS
Me?
AXEL
Well, that's what Zexion smelled. Actually, it was just a corporeal version of his internal struggle with his irascible darkness left over form his traumatic occurrences within Hollow Bastion materialized into physical being.
(Pause)
XEMNAS
(Confused) Wha...?
AXEL
It was Xehanort.
XEMNAS
Oh, really?
AXEL
Really.
XEMNAS
How is he important to this chain of events?
AXEL
Well, a schism occurred within the castle. It was divided between Marluxia and Zexion.
XEMNAS
Two of the deadliest within our order.
AXEL
Hardly. You've seen Saix when he, well, loses it.
XEMNAS
See, this is why we never invite him to the company picnic.
AXEL
Honestly, why do we schedule it at night when the moon is right above us?
XEMNAS
Blame Luxord. Time is his department.
AXEL
Hey, where was I?
XEMNAS
The schism.
AXEL
Well, don't get offended-
XEMNAS
Like I can-
AXEL
But I don't thinking you were using all your brain cells when you gave Marluxia control of the project.
XEMNAS
(Barely suppressing anger) Elaborate. Quickly.