| Author | Larry Niven |
| Series | Tales of Known Space, Known Space |
| Publisher | Ballantine Books |
| Imprint | Del Rey Books |
| Copyright Holder | Larry Niven |
| Cover Art by | Dean Ellis |
| Format | Paperback |
| Language | English |
| Location | United States |
| This Edition Published | 1973-09 |
| Printed | 1978-11 |
| Copyright | 1973 |
| Pages / Font | 218 pages |
| Catalog Number | 28244 |
| ISBN | 0-345-28244-2 |
| Edition No. | 1 |
| Impression/Printing No. | Seventh |
| Price | $1.95 |
| Other | 345-26244-2-195 |
| Chapters | Phssthpok . . . 1
Interlude . . . 101
Vandervecken . . . 105
Protector . . . 211 Phssthpok . . . 1
Interlude . . . 101
Vandervecken . . . 105
Protector . . . 211 Show all ▾ |
| Notes | "A shorter version of this novel appeared under the title, "The Adults," in 'Galaxy' Magazine, June 1967. Copyright 1967 © Galaxy Publishing Corporation." |