- ISBN: 0807555673, 9780807555675
- Page count: 128
- Published: 2007-01-01
- Format: Paperback
- Publisher: Oasis Audio
- Author: Gertrude Chandler Warner
The Aldens are visiting Aunt Jane in Elmford where they will see a mystery play at the Trap-Door Theater. Each day at rehearsal something strange happens to the front-row seat once occupied by the theater's benefactor. Is the benefactor's ghost about?