Comic Title: Action Comics #329
Publisher: DC (National Periodical Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: October 1965
On Sale Date: August 26, 1965 Newsstand Date August 26, 1965
Source: House Ad, Superboy #124, Page 20

Copyright Date August 26, 1965
Source: Library of Congress, Periodicals 1965


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

Title: "The Ultimate Enemy"
Pages: 12

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

Writer: Edmond Hamilton
Artist: Al Plastino

Feature Character(s)

• Superman (last appearance in Superman's Girl Friend, Lois Lane #60; next appearance in Superman's Pal, Jimmy Olsen #88)

Supporting Character(s)

• Jimmy Olsen (last appearance in Superman's Girl Friend, Lois Lane #60; next appearance in Superman's Pal, Jimmy Olsen #88)
• Lois Lane (last appearance in Superman's Girl Friend, Lois Lane #60; next appearance in Superman's Pal, Jimmy Olsen #88)

Villain(s)

• Jon Smatten and his robot knight (no further appearances)

Guest Appearance(s)

• Superboy (in flashback; last appearance in Superboy #124; next appearance in Adventure Comics #337)
• Jor-El (appears in flashback; last appearance in Superman's Girl Friend, Lois Lane #59; next appearance in Superboy #126)

Other Character(s)

• Hab-Rull (no further appearances)

Flashback Appearance(s)

• Kal-El (as a baby on Krypton; last appearance in Superman's Girl Friend, Lois Lane #59; next appearance in Superboy #126)

Comments:
The sword made of Kryptonian metal appears next in the first story of Action Comics #333.

Synopsis:
A robot knight appears in Metropolis and robs a bank. Superman attempts to stop the robot, but he finds that the armor is stronger than he is. The knight's sword is also capable of cutting Superman's indestructible costume. Seemingly unable to defeat the knight, Superman challenges it to a final duel along the pier. He and the knight fall into the water. The knight emerges moments later, but Superman doesn't resurface.

The robot returns to his creator, criminal scientist Jon Smatten. Smatten holds a grudge against Superman who has captured him before. The knight was constructed with an experimental Kryptonian metal that was sent into space before Krypton exploded. Superman, hiding inside the robot, obtains a confession, then apprehends Smatten. The robot is disassembled. Superman keeps the sword in his Fortress for possible later use.