The children investigate some mysterious happenings in their hotel in New York City.
| ISBN: | 9780807554074 |
| Publication date: | 1st January 1994 |
| Author: | Gertrude Chandler Warner |
| Illustrator: | Charles Tang |
| Publisher: | Albert Whitman & Company |
| Format: | Hardback |
| Pagination: | 122 pages |
| Genres: |
Crime & Mystery |