Orion · Orion Children's Books
| title | media type | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|---|
| The Defender | Audio Cassette | 978-0-7528-6076-3 (0-7528-6076-3) | 2004 | Alan Gibbons |
| The Defender | Audio CD | 978-0-7528-6683-3 (0-7528-6683-4) | 2004 | " |
| The Defender | Paperback | 978-1-84255-098-4 (1-84255-098-5) | 2004 | " |