1226 - Superboy and the Legion of Super Heroes 246 - Will the Last One to Leave Mercury, Please Close the Planet?

Index Number – 1226 - 1.0
Issue – Superboy and the Legion of Super Heroes 246
Cover Date – December 1978
Title – Will the Last One To Leave Mercury Please Close the Planet?
Characters – Chameleon Boy, Colossal Boy, Karate Kid, Lightning Lad, Shadow Lass, Sun Boy, Superboy
Synopsis – Karate Kid takes Iris Jacobs to Medicus-One on Mercury to sure her Diamondeth condition.
Writer – Paul Levitz, Len Wein
Artist – Joe Staton / Dick Giordano
Cover – Mike Grell
Editor – Al Milgrom, Jack C. Harris