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)
Das Geheimnis des “Es” (German title)
The Mystery of the “It” (German title, translated)
Written by Mike Butterworth
Illustrated by Don Lawrence
An abridged version was reprinted in 6 instalments in issues 977 (29 November 1980) to 982 (3 January 1981) of Look and Learn magazine.
It is reprinted in Volume 10 of The Trigan Empire—The Collection (the Don Lawrence Collection).
It is reprinted in Volume 4 of The Rise and Fall of the Trigan Empire (Rebellion).
Plot summary (Dutch)
MediaFire via British Comics Compilations