Comic Title: Adventure Comics #314
Publisher: DC (National Periodical Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: November 1963
On Sale Date: September 26, 1963 Newsstand Date September 26, 1963
Source: House Ad, Superman's Girl Friend Lois Lane #45, Page 30

Copyright Date September 26, 1963
Source: Library of Congress, Periodicals 1963

Frequency: Monthly
Cover Price: $0.12
Page Count: 32
Editor: Mort Weisinger

Title: "The Super-Villains of All Ages"
Pages: 17

Feature(s):
Legion of Super-Heroes (of Earth-1)

Writer: Edmond Hamilton
Artist: John Forte

Reprinted In:
Adventure Comics #501 (1983)
Legion of Super-Heroes Archives Vol. 2 HC (1992)
Showcase Presents:Legion of Super-Heroes Vol. 1 TPB (2007)
Legion of Super-Heroes:The Silver Age Omnibus Vol. 1 HC (2017)

Feature Character(s)

• Legion of Super-Heroes (last appearance in Adventure Comics #313; next appearance in Adventure Comics #315)
• Saturn Girl (last appearance in Adventure Comics #313; next appearance in Action Comics #307)
• Lightning Lad (last appearance in Adventure Comics #313; next appearance in Adventure Comics #315)
• Superboy (last appearance in Adventure Comics #313; next appearance in Adventure Comics #314)
• Chameleon Boy (last appearance in Adventure Comics #313; next appearance in Adventure Comics #315)
• Brainiac 5 (last appearance in Adventure Comics #313; next appearance in Adventure Comics #315)
• Bouncing Boy (last appearance in Adventure Comics #313; next appearance in Adventure Comics #315)
• Invisible Kid (last appearance in Adventure Comics #310; next appearance in Adventure Comics #316)
• Shrinking Violet (last appearance in Adventure Comics #313; next appearance in Superman's Pal, Jimmy Olsen #72)
• Mon-El (last appearance in Adventure Comics #313; next appearance in Superman's Pal, Jimmy Olsen #72)
• Sun Boy (last appearance in Adventure Comics #313; next appearance in Adventure Comics #316)
• Ultra Boy (last appearance in Adventure Comics #310; next appearance in Adventure Comics #316)

Villain(s)

• Alaktor (no further appearances)
• Adolf Hitler (first Earth-1 appearance; last appearance in Blackhawk #272; next appearance in Superboy #168)
• John Dillinger and his henchmen (no further appearances)
• Emperor Nero (Nero Claudius Drusus Germanicus; no further appearances)
• Hitler’s guards (no further appearances)

Other Character(s)

• Ronn Kar (a rejected Legion applicant; next appearance in Adventure Comics #372)
• Roman centurions, a police officer, two bank employers, and eight Allied pilots (no further appearances)

Comments:
This story reveals that Mon-El must drink his serum every 48 hours to retain his invulnerability to lead.

Following this story, Sun Boy and Ultra Boy go on a mission to the Puppet Planetoid as shown in flashback in Adventure Comics #316.

Then Saturn Girl prevents Supergirl from marrying the evil Tor-An in the second story of Action Comics #307.

Synopsis:
Posing as a Legion applicant, the villainous Alaktor gains entry to the Legion Clubhouse, and secretly takes pictures that allow him to circumvent their security system and steal a Time Bubble. Travelling to the past, he gathers Emporer Nero, John Dillinger, and Adolf Hitler, and constructs a device that transfers their personalities into the bodies of Mon-El, Ultra Boy, and Superboy respectively.

Together, the evil trio gathers the mighty scientific machines of the Lost World for Alaktor, nearly destroying their former teammates in the process, until Saturn Girl uses her mental powers to turn the three possessed heroes against one another. This allows the Legion to apprehend Alaktor and force him to return the evil personalities to their proper hosts.