Every Valérian adventure from Bad Dreams to The Wrath of Hypsis was first serialised in the Franco-Belgian comics magazine Pilote.
When Bad Dreams was eventually collected as an album, it was given the number "0" to reflect its position as the debut adventure in the series.
Seven short stories were also published in the quarterly, digest-sized Super Pocket Pilote between 1969 and 1970 and later collected in Across the Pathways of Space (Par Les Chemins De l’Espace) (1997): The American graphic magazine Heavy Metal serialized the first English translations of Valerian and Laureline with Ambassador of the Shadows in 1981.
Several attempts were subsequently made to translate the series into English in book form, starting with Ambassador of the Shadows, World Without Stars, Welcome to Alflolol and Heroes of the Equinox by Dargaud imprints[1] in the US, Canada, and the United Kingdom between 1981 and 1985.
"On the Frontiers," "The Living Weapons," and "The Circles of Power", translated by Timothy Ryan Smith, were collected in a single volume under the title Valerian: the New Future Trilogy,[1] published by iBooks in 2004.