Brainiac 5's attempt to cure Danielle Foccart results in the return of Computo, who possesses the young girl and takes over all automated functions of the Legion headquarters, resulting in many injuries to the team and widespread destruction. Danielle's brother Jacques saves the day by drinking Lyle Norg's invisibility potion, which allows him to get close enough to exorcise Computo from Danielle.
Characters: Legion of Super-Heroes [Dawnstar; Wildfire; Element Lad; Brainiac 5; Mon-El; Dream Girl; Cosmic Boy; Lightning Lad; Saturn Girl; Sun Boy; Star Boy; Superboy; Colossal Boy; Shrinking Violet; Blok; Timber Wolf; Ultra Boy; Phantom Girl; Light Lass; Chameleon Boy; Invisible Kid [Jacques Foccart]]; Shvaughn Erin; Danielle Foccart [Computo]; Chief Zendak; Bouncing Boy; Duo Damsel; Legion of Substitute Heroes [Polar Boy; Fire Lad; Night Girl; Chlorophyll Kid]; President Marte Allon; Darkseid
Script: Keith Giffen; Paul Levitz
Pencils: Keith Giffen
Inks: Bruce Patterson
Colors: Carl Gafford
Letters: John Costanza
