The Seventh Crystal

Chosen One,
The ancient palace lies in the Valley of Zon. It is imperative that you come immediately. You are my last hope. Look for the secret path. The stars will lead the way. Take care. The eyes of Mogg are everywhere.

As if school bullies weren't enough of a problem, now Chris Masters has a computer game pushing him around! Ever since The Seventh Crystal arrived anonymously in the mail one day, Chris has been obsessed with it—it's the most challenging game he's ever played. But when the game starts to take over, Chris is forced to face a lean, mean, medieval bully.