Comic Title: Mystery in Space #83
Publisher: DC (National Periodical Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: May 1963
On Sale Date: March 7, 1963 Newsstand Date March 7, 1963
Source: House Ad, Brave and the Bold #47, Page 30

Copyright Date March 7, 1963
Source: Library of Congress, Periodicals 1963

Frequency: Monthly, with the exception of January, April, July and October
Cover Price: $0.12
Page Count: 32
Editor: Julius Schwartz

Title: "Who Went Where -- and Why?"
Pages: 11

Feature(s):
Star Rovers

Writer: Gardner F. Fox
Artist: Sid Greene

Reprinted In:
From Beyond the Unknown #19 (1972)

Feature Character(s)

• Star Rovers (Karel Sorensen, Rick Purvis, and Homer Glint; last appearance in Mystery in Space #80; next appearance in Mystery in Space #86)

Villain(s)

• Evil duplicates of the Star Rovers (no further appearances)

Other Character(s)

• An alien thinking machine, the Great Brain of Lallikal, and Orgal (an energy being; no further appearances)

Synopsis:
Each of the Star Rovers encounters beings which create evil duplicates on them. The Star Rovers successfully defeat their opponents, but the duplicates arrive on Earth shortly thereafter. The Rovers return to the planet which contained an alien thinking machine, having deduced that the machine is responsible for this set of duplicates. Using their weapons together they are able to destroy the machine.