Sora carefully opened the large door. As it creaked open, a blinding light poured from it. Sora covered his eyes. When he reopened them, he was shocked by what he saw. It was Destiny Island! "Is… is this my island?" Sora stammered. He looked around, and realized something wasn't quite right. Things were disappearing into seemingly thin air. Sora carefully made his way to the one place he wanted to see: the Secret Place. As he approached, he heard the deep, booming voice of Ansem.
"This world has been connected. Tied to the darkness… soon to be completely eclipsed. There is so very much to learn. You understand so little. A meaningless effort. One who knows nothing can understand nothing." Sora looked around him, trying to locate Ansem. Suddenly, big chunks of the island started disappearing. The water turned into a thick, gooey purple substance as the beach fell apart. Sora then spotted Riku standing along the edge of the tattered beach, wearing his armor of darkness. Sora raced down the hill towards him. As he reached him, Riku spoke in Ansem's voice. "Take a look at this tiny place. To the heart seeking freedom, this island is a prison, surrounded by water. And so this boy sought to escape from his prison. He sought a way to cross over into other worlds. And he opened his heart to darkness."
Riku started glowing, and transformed into Ansem. Sora screamed, "Riku!"
Ansem responded, "Don't bother. Your voice can no longer reach him where he is. His heart belongs again to the darkness. All worlds begin in darkness, and all so end. The heart is no different. Darkness sprouts within it, it grows, consumes it. Such it its nature. In the end, every heart returns to the darkness from whence it came! You see, darkness is the heart's true essence…."
Sora retaliated quickly. "That's not true! The heart may be weak, and sometimes may give in, but I've learned that deep down, there's a light that never goes out!"
Ansem merely smirked. "So, you have come this far, and still you understand nothing. Every light must fade, every heart return to DARKNESS!" he screamed. A dark sphere appeared behind him, and a rather vicious looking Heartless emerged from it. The Heartless emitted a horrid cry, and charged forward. Sora summoned his Keyblade, preparing for the battle to come.