Xion looked out the window of the Gummi ship. "We need to keep a eye on each other." Sora said as Xion freaked out and looked up at him "Riku doesn't know." He told her. "You should know by now," Xion said as she turned back to the window "He won't stop until he as me and watches me die or we tell him." She told her brother. "I don't get it," Donald spoke up "Why is it that when twin keyblade wielders are born they can't be separated?" he asked. "The Ansem reports said that because the keyblade saw both the light in the twins hearts that it couldn't chose and that happened when I saw Xion. That's how Xion got a keyblade." Sora explained. "Isn't there a cure or something?" Goofy asked. "Only if one of us wants to become a heartless." Xion said as she got up. Sora walked away to Kairi. "We'll find out whats wrong with her." Xion said as Sora got up. "And whatever is making Riku Phycoku." Sora said as his friends and sister laughed.
Riku was at hallow Bastion stabbing himself again. He whispered Xion's name over again with every stab. "Xion….Is….MINE!" He yelled stabbing himself deeply. "If you want her," A voice said "Then join me." It told Riku. He looked around to find a man in a sheet or something covered by a blue aura. "If she becomes mine and turned to the darkness….We have a deal." Riku said smiling evilly.
Sora and Xion got off the ship. Kairi was fallowing Sora for some reason. "Riku." Sora said seeing Riku in some weird outfit. "Sora," He said "Do you know how to free your sister?" he asked. Sora was going to say something but Xion cut in. "We have to find the keyblade of darkness. And we have decided that I'll become a hearless." Xion told him. Riku looked very angry. "No…No….NO!!" He yelled as heartless surrounded them. One grabbed Kairi . Ten jumped on top of Sora. Five on Goofy and Donald. Xion was grabbed by Riku. He pulled her out of the room. "I'm not losing you. Never." Riku said holding her tighter. "Who are you?" Xion asked. Riku was shocked. Xion didn't know who he was. A heartless layed Kairi's body down on the floor. Riku let go of Xion. He jumped up so he was sitting on a part of some odd machine with some unfinished keyhole. "Kairi! Xion!" Sora yelled as Xion looked at Riku. "Ansem!" Xion screamed then covered her mouth. "Xion what did you say?" Sora asked. "You should listen to her," Riku said in a voice that wasn't his "You hold the heart of that princesses." He said pointing at Sora as his chest hurt. "Kairi's heart is inside of me?" Sora asked himself. "I will free the princesses." Ansem or Riku said raising his keyblade ready to kill Sora. "Your not taking Sora away!" Xion yelled at Ansem "Give Riku back." She told him. "NEVER." He said. Xion summoned her keyblade. She had to fight Ansem. Who didn't look like himself. Xion had to fight Riku.