The Looking Glass War: Book 2 of Project Looking Glass

They built the Looking Glass with hard limits because they were terrified of what players might become. Today, those limits break.
Alister survived the lethal data-stream that killed his fellow recruits, waking up as a localized Anomaly with the power to rewrite the game's core code. Now officially holding the physical keys to Titan Base in the real world, he must dive back into the digital hellscape to finish what he started.
The Jabberwocky virus is mutating, threatening to permanently delete the thousands of players trapped in the coma-wards—and the divided soul of the artificial goddess who loves him. To save them, Alister and his elite guild, the Cheshire Cat, must conquer the impossible. They will face the suffocating, crushing depths of the Sunken Archive and the mind-bending terrors of the Abyssal Core to retrieve the final pieces of the shattered Vorpal Blade.
But the true enemy isn't just in the code. Earth Command is moving to shut down the physical servers, forcing Alister to do the unthinkable: shatter the game’s ultimate Level 100 hard-cap and bridge the gap between flesh and data.
The rules of reality are obsolete. It's time to break the Looking Glass