Tom Hock dreams big. He wants to be the greatest pro gamer in the world, and he's got the skills to make it. Right now though, the twelve-year-old's happily exploring San Diego's Comic Book Convention with his older brother, Joey.

While at the convention, Tom makes two discoveries. The first is the existence of Monster Realm, a mysterious game played deep beneath the convention floor. Those who win the game earn the coveted title of Multidimensional Game Master. The second surprise is Dark Pixy, a cute, butt-kicking pro-gamer with a hidden connection to Monster Realm.

Once they start playing, Tom, Joey, and Pixy realize they're trapped in the game, their bodies the slaves of the game designer. The only way to escape is to beat the final boss, a feat impossible for normal gamers.

Good thing Tom and Pixy aren't normal gamers. But as they struggle to reclaim their bodies, something within the game also wants access to the real world. If it escapes, no one will survive to attend next year's convention.