Comic Title: Superboy #85
Publisher: DC (National Comics Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: December 1960
On Sale Date: October 6, 1960 Newsstand Date October 6, 1960
Source: House Ad, Action Comics #270, Page 12

Copyright Date October 6, 1960
Source: Library of Congress, Periodicals 1960

Newsstand Date October 6, 1960
Source: Newsdealer Magazine, V15 #8

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

Title: "The Mystery of Mighty Boy"
Pages: 19

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

Writer: Otto Binder
Artist: George Papp

Reprinted In:
Superman Annual #6 (1963)

Feature Character(s)

• Superboy (last appearance in Adventure Comics #278; next appearance in Superboy #85)

Supporting Character(s)

• Jonathan Kent (last appearance in Adventure Comics #278; next appearance in Superboy #85)
• Martha Kent (last appearance in Adventure Comics #278; next appearance in Superboy #85)
• Lana Lang (last appearance in Adventure Comics #278; next appearance in Adventure Comics #279)
• Krypto (last appearance in Adventure Comics #278; next appearance in Superboy #86)

Other Character(s)

• Mighty Boy (Zarl Kazzan; no further appearances)
• Rovo (Mighty Boy's dog; no further appearances)
• Charles Keith and his wife (no further appearances)
• Chad Kazzan and his wife (no further appearances)
• Charise Kaan (no further appearances)

Comments:
Chap 2. : "Superboy’s Lost Friend"

Synopsis:
Superboy discovers a rocket buried under the ground which contains artifacts from the planet Zumoor. He flys to Zumoor where he meets Mighty Boy, a super-hero from that world. Mighty Boy came from Earth originally and was sent into space by his parents who were stranded on a desert island. He gained powers under Zumoor’s gravity and lives a life which parallels Superboy’s.

After Superboy’s arrival, Mighty Boy begins to go through several strange changes. First he becomes paralyzed during a rescue, then he gains a super-brain, and finally he is temporarily split into two separate people. Superboy realizes that his own body is responsible for the changes to his new friend. Zumoor’s moon causes Superboy to act to Mighty Boy as Red Kryptonite does to him. The Boy of Steel returns to Earth fearing himself too dangerous to remain on Zumoor.