The gang is headed out for a fun night at the Coolsville Opera House. But they unexpectedly have to take on starring roles when a mysterious ogre threatens to ruin the production, and sets its sights on Shaggy and Scooby-Doo! Help the gang outwit their outrageous opponent and earn Zoinks Points by finding the 10 masks hidden in the story and solving the Spot the Difference puzzles! Experience the adventure in this Scooby-Doo Reader App! • Word highlighting for younger readers. • Read along with professional narration. • Customize your experience: Text display, audio, and autoplay mode can be turned on and off. • Easily jump to your favorite page or activity with the visual index.