Eleven-year-old Marcus is spending a week at the beach with his mother in a tiny old travel trailer, but boredom turns to terror when a new friend discovers a cellar that has magical doors through which people keep disappearing. Simultaneous.
- Genre: Juvenile Fiction
- Subgenre: Action + Adventure / General, Science Fiction + Fantasy + Magic, Family / Multigenerational
- Age: 9-12 years
- Publisher: Listening Library
- Edition: Unabridged
- Language: English
- Format: audioCD
- Release Date: May 8, 2012
- Date Published: April 24, 2012
- Author: Catherine Jinks
- Narrator: Chelsea Bruland (Narrator)