(janvier 1977)
- Script
- Pierre Christin
- Pencils
- Jean-Claude Mézières
- Inks
- Jean-Claude Mézières
- Colors
- Évelyne Tranlé
- Letters
- ?
- Genre
- science-fiction (science fiction)
- Reprints
- in Valérian, agente espácio-temporal (Meribérica, 1980 series) #7 - Nas Terras Programadas
- in Linda och Valentins äventyr (Carlsen/if [SE], 1975 series) #6 - Den falska världen (1977)
- in Linda og Valentin (Carlsen, 1975 series) #6 - I den falske verden (1977)
- in Ravian (Oberon; Dargaud Benelux, 1980 series) #7 - De vale schepper (1982)
- in Valerian und Veronique (Carlsen Comics [DE], 1978 series) #9 - Trügerische Welten (1982)
which is reprinted- in Jornal da B.D. (Sojornal, 1982 series) #49 (7 de Julho de 1983), #50 (14 de Julho de 1983), #51 (21 de Julho de 1983), #52 (28 de Julho de 1983), #53 (4 de Agosto de 1983), #54 (11 de Agosto de 1983), #55 (18 de Agosto de 1983), #56 (25 de Agosto de 1983)
- in Gli Albi di Pilot (Sergio Bonelli Editore, 1984 series) #19 (aprile 1986)
- in Stripoteka (Marketprint, 1997 series) #951 (Decembar 2000)
- in Valerian and Laureline (Cinebook, 2010 series) #7 - On the False Earths (March 2014)
which is reprinted- in Valerian wydanie zbiorcze (Taurus Media, 2014 series) #3 ([grudzień] 2015)