Features the alien Ythrians from Poul Anderson's Technic History, but uses them in a setting incompatible with Anderson's series, and is thus not part of it.
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| May 2014 |
|
Multiverse: Exploring Poul Anderson's Worlds | Subterranean Press | Anthology | 321 |
| May 2014 |
|
Multiverse: Exploring Poul Anderson's Worlds | Subterranean Press | Anthology | 321 |
| December 2014 |
|
Multiverse: Exploring Poul Anderson's Worlds | Blackstone Audio | Anthology | |321 |
| June 2015 |
|
Multiverse: Exploring Poul Anderson's Worlds | Baen Books | Anthology | |
| June 2015 |
|
Multiverse: Exploring Poul Anderson's Worlds | Baen Books | Anthology | |
| August 2016 |
|
Multiverse: Exploring the Worlds of Poul Anderson | Baen Books | Anthology |