In 1904, nine-year-old Samantha, an orphan living with her wealthy grandmother, and her servant friend Nellie have a midnight adventure when they try to find out what has happened to the seamstress who suddenly left her job.
Capable and hardworking ten-year-old Clover Twig takes a job as housekeeper for a messy witch, Demelza, but while Demelza is away Clover and an accident-prone neighbor boy must defend the weird cottage from the witch's evil sister.
Irish orphans Molly, fourteen, and Kip, ten, travel to England to work as servants in a crumbling manor house where nothing is quite what it seems to be, and soon the siblings are confronted by a mysterious stranger and secrets of the cursed house.