| Author | Philip José Farmer |
| Publisher | Ace Books |
| Publisher Series | Ace SF |
| Series | World of Tiers |
| Copyright Holder | Philip José Farmer |
| Cover Art by | Boris Vallejo |
| Introduction by | Roger Zelazny |
| Format | Paperback |
| Language | English |
| Location | United States |
| Copyright | 1968 |
| Pages / Font | 275 pages |
| Catalog Number | 67953-6 |
| Price | US $1.95 |
| Other | 0-441 67953-6 195 |