"Well, Sora had previously went through his training, as usual. However just now, I noticed something troubling. He seemed to be calling out your name, Riku. This is a very clear sign something unexpected has happened. I know it not to be Master Xehanort, as at least he even knows both sides will need preparation. This may be something we've yet to encounter. As an official Keyblade Master, I want you to go and Dive into Sora's Dream World, and investigate. Sora trains in Traverse Town, so you'd do well to go there. Report back your findings, and based on what you tell me, I will explain how to proceed. Lea, Kairi. Continue your training, you have much work to do. Get going Riku. Sora is sleeping at the top of the tower, where he usually is." Yen Sid said. And with that, he disappeared.