- Publication Series: Ullstein 2000 Pub. Series Record # 1618
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Note: This series was a sub-series of Ullstein Bücher but solely devoted to speculative fiction. The numeration on the books belonged to the parent pub. series. We give this # in brackets, following the continuous numeration for 'Ullstein 2000', which is derived by counting the published titles. Ullstein 2000 ran from 1970 to 1979, being succeeded by Ullstein Science Fiction & Fantasy.