Hooray for Hollywood — Dave Warner

When Charlotte's riding school is sued by one of the Evil Three, there is only one solution: Leila must return to her beloved Hollywood and make a movie to save the academy. But Hollywood has its own problems: snobby stars, rival film-makers, disgruntled employees, and the lure of glamorous parties. While Leila is away, someone kidnaps Sarah-Jane, and no one knows why. Now Charlotte and her friends have to find out before the film is cancelled and the academy is shut down.