When his uncle sends him to work at the mysterious Stallery Mansion, twelve-year-old Conrad Tesdinic overcomes his bad karma and discovers in the mansion's winecellar the source of the magic that threatens to pull his world into one of the eleven other parallel universes.
When a teacher at an English boarding school finds a note on his desk accusing someone in the class of being a witch, magical things begin to happen and an inquisitor is summoned.
When twelve-year-old Laura and her friend Cara discover that their neighbor is a witch who entraps her enemies in portraits, the girls attempt to free the victims.