The Secret of the Underground Room: A Johnny Dixon, Professer Childermass Book
| Country | USA |
| Brand | uxcell |
| Binding | Misc. |
| ItemPartNumber | a16052500ux0150 |
| Model | a16052500ux0150 |
| Size | Large |
| UnitCount | 2 |
| UPCs | 602451656722 |
| EANs | 0602451656722 |
| ReleaseDate | 0000-00-00 |