Festung der sechs Monde

From Author Wars - https://authorwars.com/publications/festung-der-sechs-monde-444204.html

Overview:

Title: Festung der sechs Monde
Author: C. Darlton, K. H. Scheer
Year: 1963
Publisher: Widukind / Gebrüder Zimmermann
Price: DM 7.60
Pages: 287
Binding: Hardcover
Type: Novel
Title Reference: Festung der sechs Monde
Notes:
- This is a fix-up by K. H. Scheer of the two novellas of the Perry Rhodan series:
  12: Das Geheimnis der Zeitgruft by Clark Darlton, and
  13: Die Festung der sechs Monde by K.H. Scheer
- Only Scheer's name appears on the cover, the actual authors are named only inside the books.
- All data taken from sf-leihbuch.de