Fics like The Snake Among Warriors

"He had made up his mind. Let XANA taste its own medicine." Or, During another sleepless night in the lab, Jérémie finds XANA attempting to break through the firewall. While it fails, XANA leaves a breach that must be repaired directly in Lyoko. Realizing that no one else can virtualize, the young genius resolves to go alone, confronting the primary reason he has always avoided returning to the virtual world, particularly alongside his friends. [Set before ‘Jeremy's Blues’]

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