Episode 3 of The Trigan Empire
Elekton In Danger
aka The Falling Moon (The Collection)
Laatste uur voor Elekton (Dutch title)
Last Hour for Elekton (Dutch title, translated)
Written by Mike Butterworth
Illustrated by Don Lawrence
Elekton In Danger was originally published in 14 instalments in issues 24 (26 February 1966) to 37 (28 May 1966) of Ranger magazine.
An abridged version was reprinted in 1973 in The Look and Learn Book of the Trigan Empire (IPC/Fleetway).
An abridged version was reprinted in 1975 in Vulcan comic.
An abridged version was reprinted in 1978 in The Trigan Empire (Hamlyn/Chartwell).
It is reprinted in Volume 1 of The Trigan Empire—The Collection (the Don Lawrence Collection).
It is reprinted in Volume 1 of The Rise and Fall of the Trigan Empire (Rebellion).

Plot summary
The Trigans witness a searing flash of light in the sky. Peric determines that the cause was a collision of the moons Seres and Gallas. Gallas is now hurtling toward Elekton, and calculations indicate it will crash into Loka.
King Zorth of Loka departs with his entire people to Vorg. Since they appear unarmed, Trigo allows them into Trigan City. At night, they reveal their hidden weapons and seize the city. Trigo and Brag escape but crash their atmosphere craft in the desert of Seres. Janno is tied to a tall pole by the Lokans, and Elekton’s carrion birds, the varks, threaten to kill him.
Trigo and his brother are captured by desert raiders and forced to work as slaves in their citadel. Trigo uncovers a plot against the citadel’s leader. Because he helps the chief prevent an attack on the city, he is granted one hundred men to help liberate Trigan City.
Keren rescues Janno, and together they steal a hovertank. After destroying the enemy air fleet with it, they escape the city. They flee into a dark cave with their hovertank but crash it. The Lokans pursue them in their own hovertanks, which all crash as well.
Janno and Keren find Trigo and join him. They defeat the Lokans in Trigan City and capture Zorth. As punishment, Trigo sends Zorth and his people back to Loka, where the moon Gallas is expected to crash in three days. Trigo feels remorse and wants to bring the people back, but it’s unnecessary—Gallas has veered off course due to a stratospheric storm. Zorth is exiled by his own people.

Links
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https://www.catawiki.com/sv/l/5505203-lawrence-don-original-drawing-the-trigan-empire-original-frame-for-the-story-elekton-in-danger-1966
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https://www.catawiki.com/fr/l/3155101-trigie-3-orginele-ingekleurde-plaatjes-het-laatste-uur-voor-elekton
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https://www.catawiki.com/en/l/3336237-don-lawrence-trigan-empire-original-page-laatste-uur-voor-elekton-elekton-in-danger-1966
31
https://www.catawiki.com/en/l/57886995-lawrence-don-originele-pagina-in-kleur-the-trigan-empire-laatste-uur-voor-elekton-1966
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https://www.catawiki.com/en/l/55573229-lawrence-don-originele-pagina-in-kleur-trigie-laatste-uur-voor-elekton-1966
34
https://www.catawiki.com/nl/l/65092269
37
https://www.catawiki.com/en/l/3336459-don-lawrence-trigan-empire-original-page-het-rijk-der-laatste-dagen-invaders-from-gallas-1966
https://www.scribd.com/document/469718999/Extra-Color-007-Mike-Butterworth-Don-Lawrence-El-Imperio-de-Trigan-3-Ultimatum-a-Elekton
Plot summary (Dutch)
Downloads
MediaFire via British Comics Compilations