Comic Title: Superboy #153
Publisher: DC (National Periodical Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: January 1969
On Sale Date: November 21, 1968 Newsstand Date November 21, 1968
Source: House Ad, Angel and the Ape #2, Page 31

Copyright Date November 21, 1968
Source: Library of Congress, Periodicals 1969

Newsstand Date November 21, 1968
Source: Comic Reader, #70

Newsstand Date November 21, 1968
Source: Newsdealer Magazine, V23 #9

Frequency: Monthly, with the exception of Feb., Aug. and Nov.
Cover Price: $0.12
Page Count: 32
Editor: Murray Boltinoff

Title: "Challenge of the Cosmic Invaders"
Pages: 21

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

Writer: Frank Robbins
Penciller: Bob Brown
Inker: Wallace Wood

Feature Character(s)

• Superboy (last appearance in Adventure Comics #376; next appearance in Adventure Comics #377)

Supporting Character(s)

• Jonathan Kent (last appearance in Superboy #151; next appearance in Superboy #154)
• Martha Kent (last appearance in Superboy #151; next appearance in Superboy #154)

Villain(s)

• Invaders from Lethos (no further appearances)

Other Character(s)

• Robot duplicates of Hitler, Hirohito, Stalin, Churchill, Quisling, and other world leaders (no further appearances)
• A robot duplicate of Professor Mesmer (no further appearances)

Comments:
This issue contains a two-page featurette "The Superboy Legend" which details his secret hideaways.

Synopsis:
Superboy discovers that everyone in Smallville has suddenly vanished. A race of invisible aliens takes credit. They demand that Superboy bring them all the world's leaders or they will not restore the residents of Smallville to existance. Superboy constructs robot duplicates of the world leaders which the aliens take over. Superboy then hypnotizes them into surrender.

One alien escapes from Superboy and renews his demands. The Boy of Steel then creates a special liquid compound which he sprays over the town square which makes the alien visible. The creature changes into a gaseous form to escape. Superboy inhales the creature into his indestructible body then blows the creature into an indestructible glass prison. After the alien threat is neutralized, Superboy returns to the town square to clean up his mess.