A series created by the author with Hans G. Francis and Rolf W. Liersch, featuring characters with a more critical view of their adventures.
| German | AD ASTRA |
| English | AD ASTRA |
| Category | concept |
A series created by the author with Hans G. Francis and Rolf W. Liersch, featuring characters with a more critical view of their adventures.
| German | AD ASTRA |
| English | AD ASTRA |
| Category | concept |