
Episode 24 of The Trigan Empire
The Thing from the Sea
aka The Menace from the Sea
Menace from the Deep (the Collection)
Dreiging uit het heelal (Dutch title)
Threat from Outer Space (Dutch title, translated)
Written by Mike Butterworth
Illustrated by Don Lawrence
The Thing from the Sea was originally published in 13 instalments in issues 461 (14 November 1970) to 473 (6 February 1971) of Look and Learn magazine.
It is reprinted in Volume 6 of The Trigan Empire—The Collection (the Don Lawrence Collection).
It is reprinted in Volume 3 of The Rise and Fall of the Trigan Empire (Rebellion).

Instalments
461 462 463 464 465 466 467 468 469 470 471 472 473
Links
Plot summary (Dutch)
463
https://www.catawiki.com/en/l/3339469-the-art-of-the-trigan-empire-box-with-originale-page-de-vijf-opdrachten-van-trigo-1970-2015
467
https://www.2dgalleries.com/art/the-trigan-empire-manece-from-the-deep-119848
470
https://www.catawiki.com/en/l/60891525-lawrence-don-originele-pagina-trigie-jaren-70
473
https://www.catawiki.com/en/l/3338437-don-lawrence-trigan-empire-original-page-de-vijf-opdrachten-van-trigo-trigo-s-five-tasks-1970