Feels less like an officially licensed tie-in novel and more like fan fiction written by someone who has only ever seen one episode of Charmed. Apparently the author of the book believes Cole's surname is "Porter" not "Turner", The Charmed One's book is referred to as merely "Book Of Shadows" and not "THE Book Of Shadows", the sisters can use their powers in the past, although it has been demonstrated many times that they cannot, and apparently the Charmed Ones can all throw energy balls! How someone with so little knowledge for the source material was allowed to write a media tie-in novel is beyond me!!!
eBook Shadow of the Sphinx (Charmed, #16)