Susan Wylde and the Movie Monsters by S.G. Eastment

Will Susan Wylde be able to survive the movie monsters of Elderwood?

After surviving the incredible but dangerous Circus of Magic, Susan Wylde returns to Wonderworks for the Summer Term, and an exciting visit to Elderwood, the place where Magical Movies are filmed. Soon Susan finds herself fighting hippogriffs, dinosaurs, and dragons for real, and must uncover a plot to bring the whole of Elderwood under the control of an evil enchanter.