Riku found himself back in the dark realm, or did he? Aqua, Ventus and Terra had the task of finding Sora within the dark realm, but why was Riku there, and the other three weren't?

Riku: "Mickey, this place looks familiar".

Mickey: "We're in the dark realm Riku, but it has changed a lot since I was last here with Aqua".

Riku: "Hold on, I hear a voice. It's light, and it's a girl, but it's not Kairi. This one has a funny accent".

Mickey: "Yeah, I hear it too. But I can't make out what she's saying".

The whispering, however, formed into something eventually that made sense.

Mysterious Voice (Karla): "Xehanort's been taxed for good. Can't hurt Riku once he's broke, or Sora either".

Riku [quietly]: "What?".

Mysterious Voice (Karla): "And Yozora's another one subject to 6AA".

The voice continued to speak. What Riku had thought to be someone standing behind him wasn't there when he turned around to face in their direction. But once Riku faced back to the sea to look out with Mickey, the energy of the person returned again to feel like they were behind Riku.

Riku: "Mickey, do you feel anything?".

Mickey: "No, I don't".

Riku: "There's this energy around. A girl is seeking my help, and I feel inclined to protect her. She's also hurting emotionally and it's like she's asking me to help her make things right. In return, she's offering her help".

All of sudden, Mickey disappeared. Riku's eyes widened as he then yelled:

Riku: "Mickey!".

But the energy behind Riku became stronger. He turned around and it was Sora, but shortly, Sora seemed to morph into a female version of himself and tear of sadness welled from her eye. Riku ran up to try and hug the entity as quick as he could, but his arms went right through them like a ghost.

Mysterious Voice (Karla): "Keep a dream journal; please. Write all this down".

Riku gasped and then he woke up.