The Case of the Girl in Grey (The Wollstonecraft Detective Agency, Book 2)
| Country | USA |
| Brand | Knopf |
| Manufacturer | Knopf Books for Young Readers |
| Binding | Hardcover |
| ItemPartNumber | Illustrated |
| ReleaseDate | 2015-01-06 |
| UnitCount | 2 |
| Format | Deckle Edge |
| EANs | 9780385754408 |