| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| February 1970 |
|
The Blind Worm / Seed of the Dreamers | Ace Books | Omnibus | |
| August 1972 |
|
Welten am Abgrund | Ullstein | Novel | |
| 1982 |
|
Erstarrt in der Zeit | Xenos | Novel |