The House With a Clock in Its Walls - The Ghost in the Mirror

Mrs Zimmermann is at a loss - she still hasn't regained her powers from her last encounter with dark magic and Uncle Jonathan and Lewis have left for the summer to travel around Europe, leaving her and Rose Rita bored and lonely at home. That is until Mrs Zimmermann keeps on seeing visions and shadows of her old magic teacher, Granny Wetherbee, who is trying to contact her from beyond the grave.

Mrs Zimmermann and Rose Rita set off to Pennsylvania to solve the mystery and in doing so ...