"You remember that?" There's only one time Riku can think of when Roxas would have had the chance to meet Sora in any capacity, and when he would have been able to hear Riku calling for Sora. "That was... in his dream, wasn't it?"

When Roxas asks about Xion, the last of the smile fades from Riku's face, and he shakes his head regretfully.

"Not yet. But I'll keep an eye out for her."