This is the 1st title in the "Forerunner" series by Andre Norton
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| May 1981 |
|
Forerunner | Tor / Pinnacle | Novel | 10 |
| September 1981 |
|
Forerunner | Tor / Pinnacle | Novel | 10 |
| November 1981 |
|
Forerunner | Tor / SFBC | Novel | |
| May 1982 | Forerunner | Tor | Novel | ||
| May 1986 |
|
Forerunner | Tor | Novel | 10 |
| February 1987 | Forerunner | Tor | Novel | ||
| September 1997 |
|
Forerunner | Tor | Novel | 10 |
| February 2012 |
|
Forerunner | Tor | Novel | |
| March 2012 |
|
The Forerunner Factor | Baen Books | Omnibus | |
| March 2012 |
|
Forerunner | Tor / SFBC | Novel | |
| March 2013 |
|
The Forerunner Factor | Baen Books | Omnibus | |
| December 2013 |
|
The Forerunner Factor | Baen Books | Omnibus | |
| April 2021 |
|
The Forerunner Factor | Tantor Audio | Omnibus | |1 |
| April 2021 |
|
The Forerunner Factor | Tantor and Blackstone Publishing | Omnibus | |
| April 2021 |
|
The Forerunner Factor | Tantor and Blackstone Publishing | Omnibus | |
| April 2021 | The Forerunner Factor | Tantor Audio | Omnibus |