Comic Title: Adventure Comics #212
Publisher: DC (National Comics Publications, Inc.)
Address: 480 Lexington Avenue, New York, NY
Cover Date: May 1955
Approx. On Sale Date: March 29, 1955 Copyright Date March 27, 1955
Source: Library of Congress, Periodicals 1955
Until 1958 DC did not report actual on sale dates to the copyright office
The publication dates listed in LoC records are NOT release dates.

Frequency: Monthly
Cover Price: $0.10
Page Count: 32
Editor: Mort Weisinger

Title: "Superboy's Robot Twin"
Pages: 12

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

Penciller: Curt Swan
Inker: Stan Kaye

Feature Character(s)

• Superboy (last appearance in Adventure Comics #211; next appearance in Superboy #41)

Supporting Character(s)

• Lana Lang (last appearance in Adventure Comics #211; next appearance in Superboy #41)

Villain(s)

• Angles Anthony and his gang (Joe named; no further appearances)

Other Character(s)

• Professor Wilson (no further appearances)
• The mayor of Smallville (no further appearances)
• A robot Superboy and a robot Clark Kent (no further appearances)

Synopsis:
Superboy flies into deep space in order to divert a runaway sun. When he returns to Earth he resumes his Clark Kent identity, but an after-effect of handling the sun causes him to lose his memory.

When Superboy appears to be missing, Professor Wilson constructs a Superboy robot to fool crooks into thinking the Boy of Steel is still on patrol. Gang leader Angles Anthony deduces that Superboy is just a robot and plants a camera in the robot's chest.

Meanwhile, Clark tries to remember who he really is. When he finds that he is wearing an indestructible Superboy costume, he tracks down the robot, not realizing it isn't the real Superboy. Clark reveals his identity, which the crooks see with their camera. A lightning bolt then strikes Clark, restoring his memory.

Superboy then constructs a Clark Kent robot to fool the crooks. He apprehends them and uses the robot to keep his identity a secret.