The Mystery of the Magic Circle - M. V. Carey (Alfred Hitchcock and The Three Investigators Book 27)

Is former movie star Madeline Bainbridge an innocent victim--or a target of revenge? Thieves have just stolen her valuable old films. And her memoirs have mysteriously disappeared before they could be published. Why would anyone want the aging actress to suffer? When The Three Investigators look into her hidden past, they begin to understand. The lady is a witch--and her spells can kill.