Comic Title: Superboy #85
Publisher: DC (National Comics Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: December 1960
On Sale Date: October 6, 1960 Newsstand Date October 6, 1960
Source: House Ad, Action Comics #270, Page 12

Copyright Date October 6, 1960
Source: Library of Congress, Periodicals 1960

Newsstand Date October 6, 1960
Source: Newsdealer Magazine, V15 #8

Frequency: Monthly, with the exception of Feb., May, Aug., and Nov.
Cover Price: $0.10
Page Count: 32
Editor: Mort Weisinger

Title: "The Impossible Mission"
Pages: 7

Feature(s):
Superboy (of Earth-1)

Writer: Jerry Siegel
Artist: George Papp

Reprinted In:
80 Page Giant Magazine #11 (1965)
Superman in the Sixties TPB (1999)
Superman:Past and Future TPB (2009)

Feature Character(s)

• Superboy (last appearance in Superboy #85; next appearance in Adventure Comics #279)

Supporting Character(s)

• Jonathan Kent (last appearance in Superboy #85; next appearance in Superboy #86)
• Martha Kent (last appearance in Superboy #85; next appearance in Superboy #86)

Villain(s)

• Lex Luthor (last appearance in Action Comics #267; next appearance in Action Comics #271)
• John Wilkes Booth (first appearance; next appearance in Superman's Pal Jimmy Olsen #110)

Other Character(s)

• Abraham Lincoln (first appearance; last appearance in Weird Western Tales #29; next appearance in Superman's Pal Jimmy Olsen #110)
• Several theatre goers (no further appearances)

Synopsis:
Superboy travels into the past in order to prevent Abraham Lincoln’s assassination at Ford Theatre. He arrives early in the day and attempts to warn the President. However, he can not find Lincoln right away.

In his search for the President he finds the adult Lex Luthor. Luthor has used a time machine to escape from Superman and arrives in this time period. He uses some Red Kryptonite on Superboy which paralyzes the Boy of Steel. Luthor believes that Superboy has come to capture him, but when the assassination occurs on schedule, Luthor realizes his mistake. He returns to his own time feeling guilt over his role in allowing Lincoln’s murder. Superboy also returns to his own time after the effects of the Red K wear off.