When three kids discover a book of magic spells that can only be cast during a few short minutes a day, they'll need all the time they can get to save a dying magical world, its last dragon, and themselves. An ordinary day turns extraordinary when twelve-year-old Cal witnesses his neighbor Modesty summon a slew of lost coins without lifting a finger. Turns out she has a secret manual of magic spells . . . but they only work sometimes. And they're the most boring spells ever: To Change the Color of a Room, To Repair a Chimney, To Walk With Stilts, To Untangle Yarn. Useless! But when Cal, his friend Drew, and Modesty are suddenly transported to the world the spells come from—a world that's about to lose its last dragon—they'll have to find a way to use the oddly specific incantations to save the day, if only they can figure out when magic works. From the inventive mind of Henry Clark comes a hilariously wacky adventure about magic, friendship, a lookout tower come to life, a maze in the shape of a dragon, an actual dragon named Phlogiston, and lots and lots of popcorn.