In the mysterious town of Misty Mayfair, where fog limits all visibility, there is a saying: travel by fog. If you are a sorcerer or spirit, witch or wizard, goblin, ghost or ghoul, travel by fog. If you are a lover, a stranger, a monster, a spider, travel by fog. If you are a thief, a mischief maker, a treasure taker, travel by fog. If you are a peeper, a creeper, a secret word keeper, travel by fog. Travel by fog. For a pair of ten year olds like Simon and June, who are in a desperate search to learn magic to save their town, one better learn to keep a secret. For time is running out and it is up to them to defeat an evil wizard bent on stealing all magic for his own sinister ends, and lay claim to a power too great and terrible to imagine.