Character(s):
Superman [also appears as Clark Kent]; Lex Luthor; Ventor Caine; Lois Lane; Lana Lang (cameo)
Synopsis:
While in prison, Luthor develops a new strain of Virus X, a deadly Kryptonian disease, and manages to smuggle it out to Ventor Caine so that Superman can be infected.
Notes:
Listing of DC comics on sale in early April 1968; includes cover art for The Atom (DC, 1962 series) #37 and Challengers of the Unknown (DC, 1959 series) #62.