Caius watched as Eden struck the giant Heartless shortly after he did. It seemed to do a lot more damage than his had. That was what he hated most, feeling helpless or useless. And boy did he fell useless in this fight. He didn't know how to use the weapon in his hands, he couldn't do any fancy magic tricks like Eden, he didn't even know how to fight this thing. Eden seemed to have the entire thing under control, but he still hated that there wasn't much he could do. But that had never stopped him before, Caius charged back in, only to pause as the Heartless jumped back into the mural. Shattering the most important object in town. This strange light came out from behind it and literally destroyed the Heartless. Caius had a feeling he now knew why he hadn't seen the keyhole before.

And he just knew it was the keyhole. He could sense it or something. He watched as Eden pointed his own Keyblade at the light and started floating. Another beam of light went from his Keyblade to the keyhole, and there was a loud click. Caius assumed that would be the world locking or something. So the Heartless couldn't get into it again. He instantly felt relieved knowing that his friends and family were safe. The buildings and people that had been consumed by the darkness were all coming back. Caius may not have been able to do much against the giant Heartless, but he had saved a lot of people beforehand, and it had felt good.

Caius watched as Eden approached him, noticing that the other teen looked tired. Not that he blamed him at all. He was tired too, and hurt. He listened as Eden spoke. At first he wasn't sure what to do. Leaving his world and traveling to other ones, fighting Heartless all the time. His brain was telling him no, stay here where it's safe. But his heart was screaming yes, protect people. And he had the tendency to listen to his heart more than his head. "If it means protecting people, I'll go with you." He said, taking Eden's hand. "But for tonight, why don't we rest at my place? You don't have to worry about meeting the family or anything, I live alone."