Unternehmen STARDUST / Die dritte Macht
Translation of two volumes of the German science fiction series Perry Rhodan which began publication in 1961.  It is a space opera, dealing with several themes of science fiction.
space opera, science fiction
K. H. Scheer, Clark Darlton, Kurt Mahr, Walter Ernsting
Walter Ernsting was a German science fiction and fantasy author who mainly published under the pseudonym Clark Darlton. - Wikipedia