Part of the spell has already been broken. The first stones have begun to crumble. In Artie Kingfisher's world, wizards named Merlin, fire-breathing dragons, and swords called Excalibur exist only in legends and lore--until the day his video game Otherworld springs to life. You are special, Arthur, Says the mysterious message in his game. In one week's time you will come to me at the it. Cryptic clues lead Artie to a strange place called the Invisible...