A magical classic novel from the Godmother of British fantasy, Diana Wynne Jones.
On the surface, Great Aunt Maria seems like a harmless old lady.

But when Mig and her family go to visit, they soon learn that Aunt Maria rules Cranbury-on-Sea with a rod of sweetness that’s tougher than iron and deadlier than poison. Life revolves around women’s tea parties, while grey-suited men behave like zombies and clone-like children fade into the background.

Mig is convinced that Aunt Maria must be a witch, but who will believe her? Maybe the ghost who haunts the downstairs bedroom holds the key …?