Episode 42 of The Trigan Empire
Evil from Outer Space
aka Terror from Tarron (the Collection)
Het mysterie van de Tarronmaan (Dutch title)
The Mystery of the Moon Tarron (Dutch title, translated)
Evil from Outer Space was originally published in 8 installments in issues 613 (13 October 1973) to 620 (1 December 1973) of Look and Learn magazine.
An abridged version was reprinted in 6 installments in issues 977 (29 November 1980) to 982 (3 January 1981) of Look and Learn magazine.
It is reprinted in the Don Lawrence Collection Volume 10, The House of the Five Moons.