1062 - Adventure Comics 341 - Colossal Boy's One Man War!

Index Number – 1062 - 1.0
Issue – Adventure Comics 341
Cover Date – February 1966
Title – Colossal Boy’s One Man War!
Characters – Bouncing Boy, Brainiac 5, Chameleon Boy, Colossal Boy, Cosmic Boy, Duo Damsel, Invisible Kid, Light Lass, Lightning Lad, Matter-Eater Lad, Mon-El, Phantom Girl, Saturn Girl, Shrinking Violet, Star Boy, Sun Boy, Superboy, Ultra Boy;
Introduction – Duo Damsel (Luornu Durgo)
Villain – Computo the Conqueror
Synopsis – After mourning Triplicate Girl’s apparent death, the Legionnaires are delighted to discover that two Luorno’s still remain. After a few misses (Bizarro-Computo, the Weirdo Legionnaire), Brainiac destroys his creation.
Writer – Jerry Siegel
Artist – Curt Swan / Sheldon Moldoff
Cover – Curt Swan / Sheldon Moldoff
Editor – Mort Weisinger
Reprinted – Legion of Super-Heroes Archive 5 – 1994
Showcase Presents the Legion of Super-Heroes 2 - 2008
Comments – This issue begins the tradition of disastrous inventions from Brainiac 5. 12th level intelligence, yeah, right.