| Author | Roger Zelazny |
| Series | SF Masterworks |
| Imprint | Gollancz |
| Publisher | Orion Publishing Group |
| Copyright Holder | The Amber Corporation |
| Introduction by | Adam Roberts |
| Afterword by | George R. R. Martin |
| First Published by | Millennium |
| Typeset by | The Spartan Press Ltd. |
| Printed and Bound by | Clays Ltd |
| Format | Paperback |
| Language | English |
| Location | London |
| Copyright | 1967 |
| Copyright | 2009 |
| Pages / Font | 290 pages |
| ISBN | 978-0-575-09421-5 |
| EAN 5 | 00799 |
| Barcode | 9 780575 094215 |
| Price | UK £7.99 |
| Printer's Key | 3 5 7 9 10 8 6 4 |