(1972)
- Script
- Roger Leloup; ? (Vertaling)
- Pencils
- Roger Leloup
- Inks
- Roger Leloup
- Colors
- ?
- Letters
- ?
- Genre
- science-fiction (science fiction)
- Reprints
- from Robbedoes (Dupuis, 1938 series) #1732 (24 juni 1971), #1733 (1 juli 1971), #1734 (1971), #1735 (1971), #1736 (1971), #1737 (juli 1971), #1738 (5 augustus 1971), #1739 (12 augustus 1971), #1740 (19 augustus 1971), #1741 (26 augustus 1971), #1742 (2 september 1971)
- from Yoko Tsuno (Dupuis, 1972 series) #1 - Le trio de l'étrange (1972)
which is reprinted- from Spirou (Dupuis, 1947 series) #1726, #1727, #1728, #1729, #1730, #1731, #1733, #1734, #1735, #1736, #1737, #1738, #1739, #1740, #1741, #1742, #1732 (24 juin 1971)
- in Yoko Tsuno Integraal (Dupuis, 2017 series) #1 - Van de Aarde naar Vinea (2017)