Nola isn't much of a witch. She can work only a few useless spells, like the one that lets her spy on people by enchanting a bucket of water. But there's no spell for keeping her mother-who hears voices and is a magnet for witch-hunters-out of trouble. The two of them evade the authorities by traveling from town to town, taking odd jobs and moving on-until the day Nola magically witnesses a murder. . . .