The Hollow (Sign of Seven Trilogy, Book 2)
| Country | USA |
| Brand | Berkley |
| Manufacturer | Berkley |
| Binding | Mass Market Paperback |
| Color | Multicolor |
| IsAdultProduct | |
| Height | 6.73227 |
| Length | 4.13385 |
| Weight | 0.36155810968 |
| Width | 0.82677 |
| ReleaseDate | 2008-11-25 |
| NumberOfItems | 1 |