Comic Title: Superboy #73
Publisher: DC (National Comics Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: June 1959
On Sale Date: April 7, 1959 Newsstand Date April 7, 1959
Source: House Ad, Superman's Girl Friend Lois Lane #9, Page 9,
Action Comics #252, Page 15,
Adventure Comics #260, Page 13

Copyright Date April 7, 1959
Source: Library of Congress, Periodicals 1959

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

Title: "Superboy's Glass House"
Pages: 8

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

Writer: Otto Binder
Artist: George Papp

Feature Character(s)

• Superboy (last appearance in Superboy #73; next appearance in Superboy #73)

Supporting Character(s)

• Jonathan Kent (last appearance in Superboy #73; next appearance in Superboy #74)
• Martha Kent (last appearance in Adventure Comics #260; next appearance in Adventure Comics #261)

Villain(s)

• Mr. Electronics and Nexo (no further appearances)

Synopsis:
Superboy discovers that a criminal named Mr. Electronics has built a machine that can read the Boy of Steel’s mind. The machine only has enough power for one day, so Superboy tries to leave Earth, but a Kryptonite meteor storm prevents him form escaping.

Instead, Superboy constructs a giant glass dome which blocks the machine’s ability. The crook’s henchmen, Nexo, tries to lure Superboy outside the dome so that the machine can learn Superboy’s secret identity. From inside the dome, Superboy prevents trouble caused by Nexo with the help of a Clark Kent robot. When the day is over, Superboy is able to leave the glass cage and capture the crooks.