The famous opera singer Violetta von Cacklefur is in Gloomeria to perform at the Royal Mosetropolitan Theater! But the mischievous phantom of the theater has an old grudge against her. It's up to Creepella and Geronimo to track him down in the theater's spooky basement ... before the curtains rise and he ruins the show! -- Back cover.
- ISBN13 9780545750295
- Publish Date 1 October 2016
- Publish Status Active
- Publish Country US
- Imprint Scholastic US
- Format Paperback
- Pages 128
- Language English