Negima! 31

It's all hands to battle in the heart of the wizarding world: members of Perfect World' go on the attack ... and all who oppose them literally disappear. Even Jack Rakan, the Man of a Thousand Blades, does not seem a threat. But what is the source of this mysterious and terrible power? Soon, the largest of the secrets surrounding the wizarding world will be revealed. Those who hear it will dive into the deepest despair. Are Negi and his friends ready to hear it?'