Thirteen Witches Books in Order

Thirteen Witches starts with Rosie Oaks, a girl who has spent her whole life feeling the gap where a mother's love should be. Her mother is present in body but not in spirit, and Rosie has learned to rely on stories, routines, and her own imagination to fill the quiet. Then she discovers that this sadness is not just ordinary family pain. A witch called the Memory Thief has cursed her mother, and Rosie belongs to a line of witch hunters whether she is ready or not.

That setup gives the series its emotional core. Rosie is not marching into adventure because she wants power or glory. She wants answers, and she wants her mother back. Her best friend Germ comes with her, and their friendship is one of the best things in the books. Germ is brave, impulsive, and funny where Rosie is cautious and inward. Together they make the story feel lived-in and human, even when it heads into very strange territory.

Strange territory is an understatement.

Anderson builds a world where the ordinary one sits right beside the unseen. Ghosts linger in houses and school halls. Clouds seem to witness what people do. Stories are not just comfort, they are tools, maps, and sometimes weapons. In The Memory Thief, Rosie first learns how deep that hidden world goes. In The Sea of Always, the books grow outward into a bigger quest, with travel across time and distance, an enchanted whale, and a hunt for the remaining witches. By The Palace of Dreams, the stakes have widened all the way to worlds, dreams, and the survival of imagination itself.

Even as the scale expands, the series never loses its middle grade heartbeat. These books are creepy in a satisfying way, full of shadows, curses, and eerie figures, but they are also warm and hopeful. Rosie keeps having to decide what kind of person she wants to be when fear would be easier. The villains are large and mythic, yet the books stay grounded in familiar feelings: loneliness, growing up, drifting away from a friend, and learning that love can look broken without being gone for good.

If you are wondering what kind of fantasy this is, think haunted adventure with a big imagination and a soft spot for kids who live half in books already. The trilogy is best read in order, because Rosie changes a lot from one book to the next and the central battle builds steadily. What carries it through is not just the witch hunt itself. It is the idea that imagination matters, memory matters, and stories can push back against the dark.