A tall silent figure carefully made its way through the halls of Castle Oblivion, not wanting to be discovered at so late an hour. The figure was shaped like a human, wore clothes like a human, yet did not seem to be human at all. Something about the figure revealed that it was not exactly a human… and the deed it was about to perform was, in fact, completely heartless. In its hands, the mysterious figure carried nothing except some rope and a medium-sized sack. Its feet made no noise on the cold, hard ground, and its breathing was barely audible.
Upon reaching its destination, the figure stopped, but only for a short while. Silently it reached out and slowly wrapped its fingers around the white doorknob, then carefully turned it, entering the room of the eighth member of the Organization. The figure quietly stepped inside the room and shut the door behind him, taking in all of his surroundings. There was no sound in the room but the breathing of two Nobodies… Axel and his young ward, Alexis.
Several months ago, Axel had found Alexis inside the Castle, collapsed on the ground due to exhaustion. The Organization had found out that Alexis was only four years old when her other half, Leisa, was turned into a Nobody. How someone so young had turned into a Nobody and not a Heartless was beyond Organization XIII, but nonetheless they decided to keep watch over the child. The younger members of the Organization - Axel, Demyx, and Roxas - had grown extremely fond of her and treated her like family, always keeping an attentive eye on her to make sure she didn't get into trouble. Of course, since she was so young, the Organization prohibited her from taking part in the tasks the older members did, but still considered her a part of the group.
The mysterious stranger stepped away from the door and sauntered over to where Alexis slept, moving as silently as a ghost. His shadow loomed over her like a blanket of darkness, overwhelming her and making her seem smaller than she already was. The figure remained frozen in its current position, standing above Alexis as if in anticipation of a significant event. He hesitated, and then let out a heavy sigh, allowing some of the moonlight streaming in through Axel's window to shine on his solemn face, temporarily revealing who he was.
It was Xemnas.
In all honesty, Xemnas did not really want to do what he was about to do, but he felt as if Alexis were hurting Organization XIII somehow. He wasn't certain if it was because he felt she were making the others soft (she was closer to some members more than others, but still got along well with everyone), or if he was afraid she would accidentally see something traumatizing, or if despite what he told himself, he actually had no sympathy for Alexis and just flat out wanted her gone. Whatever the reason, Xemnas was determined to get rid of her without the other members of the Organization knowing.
Using the rope he had, Xemnas bound Alexis' wrists and ankles and tied a handkerchief around her mouth, immobilizing her and disallowing her from yelling for help, should she wake up before the deed was finished. Holding the sack in one hand, the leader of the Organization picked up Alexis by the collar of her cloak and carefully placed her inside the burlap sack, then tied off the top tightly. He gently slung the weighted sack over his shoulder and turned to leave, but stopped when he heard a noise behind him. Xemnas peered over his shoulder, his eyes growing wide when Axel muttered "Thief", but once he realized that Axel was still asleep, he continued on his way out of Axel's room. Xemnas slipped out of the castle quietly, not stopping until he was safely outside its walls.
Once outside of Castle Oblivion, Xemnas walked a little ways from the entrance and opened a portal. He risked a glance behind him, then adjusted the bundle over his shoulder and stepped through the dark foreboding space in front of him. He appeared in the outskirts of Hollow Bastion, on a dangerous cliff overlooking the badly damaged castle that was surrounded by thousands of Heartless. Xemnas simply stood and stared for a long time, not wanting to do what he had been telling himself to do for awhile now, but also unable to return to the castle with Alexis still in hand.
Finally, after several minutes of internal conflict, Xemnas slowly moved the burlap sack from over his shoulder to the ground at his feet. He glared at the small, pitiful bundle as it inflated and deflated slightly with every breath Alexis took. Before Xemnas could change his mind about what he had done, he whispered these words to the sleeping child, although he knew she could not hear them.
"I'm sorry, Alexis. I truly am. But this is for your own good. And quite possibly, the good of the Organization."
With that, Xemnas turned on his heel, took a few steps forward, summoned another portal, and went back to Castle Oblivion.
All was silent in the Dark Depths.