A young boy and his Norwegian grandmother, who is an expert on witches, together foil a witches' plot to destroy the world's children by turning them into mice.

When the fairy-tale detectives rush to New York City hoping to find an Everafter who can cure Puck, they trigger a chain of events that includes a murder mystery, and learn many new things about their mother who, along with their father, is still in an enchanted sleep.

"Gypsy Beaumont's magical savvy switches to its opposite when she learns that her mean and decidedly non-magical grandma has Alzheimer's and is going to move in with her family"--