Molly Moon and the Monster Music

Eleven-year-old molly moon is known and loved for her incredible powers - hypnotism, time travelling, mind reading . . but now something seems to have power over her. Not only has it made her a brilliant musician, it's given her thousands of new fans, all of whom are mesmerized by her. Literally. Only petula, her pet pug, senses an off-note. Molly-the-maker-of-magical-music is one thing, but molly-the-big-old-meanie is another - and every day petula sees her kind owner become more and more horrible. What is going on? and can one determined dog sort it out . . before molly becomes truly monstrous?