| Author | Gordon R. Dickson |
| Copyright Holder | Gordon R. Dickson, Condé Nast Publications, Inc. |
| Series | Childe Cycle |
| Publisher | Sphere, Sphere Books, Sphere Books Limited |
| Printed by | Hazell, Watson & Viney Ltd |
| Format | Paperback |
| Language | English |
| Location | UK |
| Copyright | 1970 |
| Copyright | 1971 |
| This Edition Published | 1975 |
| Reprinted | 1976 |
| Reprinted | 1978 |
| Reprinted | 1980 |
| Reprinted | 1981 |
| Reprinted | 1982 |
| Reprinted | 1983 |
| Reprinted | 1984 |
| Reprinted | 1985 |
| Reprinted | 1986 |
| Pages / Font | 237 pages / Linotype Baskerville |
| ISBN | 0-7221-3001-5 |
| Barcode | 9 780722 1300018 |
| UPC 5 | 0 0 2 5 0 |
| Price | £2.50 United Kingdom |
Added by Supernaut1970