Comic Title: Action Comics #389
Publisher: DC (National Periodical Publications, Inc.)
Address: 909 Third Avenue, New York, NY
Cover Date: June 1970
On Sale Date: April 30, 1970 Copyright Date April 30, 1970
Source: Library of Congress, Periodicals 1970

Frequency: Monthly
Cover Price: $0.15
Page Count: 32
Editor: Mort Weisinger

Notes:
This issue contains a two-page feature showing the Superman Rogues' Gallery.

Title: "The Mystery Legionnaire"
Pages: 11

Feature(s):
Legion of Super-Heroes (of Earth-1)

Writer: Cary Bates
Penciller: J. Winslow Mortimer
Inker: Jack Abel

Reprinted In:
Legion of Super-Heroes Archives Vol. 9 HC (2000)
Showcase Presents:Legion of Super-Heroes Vol. 4 TPB (2010)
Legion of Super-Heroes:The Silver Age Omnibus Vol. 3 HC (2020)

Feature Character(s)

• Legion of Super-Heroes (last appearance in Action Comics #387; next appearance in Action Comics #390)
• Cosmic Boy (last appearance in Action Comics #386; next appearance in Action Comics #392)
• Shrinking Violet (last appearance in Action Comics #382; next appearance in Action Comics #392)
• Chemical King (last appearance in Action Comics #387; next appearance in Superboy #176)

Villain(s)

• Klim (an android; no further appearances)
• Several disabled convicts (no further appearances)

Other Character(s)

• Various scientists (no further appearances)

Synopsis:
Klim, an android constructed by several disabled criminals, was defeated by the Legion. However, the head of the android escaped. Now, the body of the android is regains power and seeks to rejoin the head. Cosmic Boy, Chemical King, and Shrinking Violet track the body to Voran, where the android was constructed. After battling their way through booby-traps, the Legionnaires find the head. Klim wants revenge against the Legionnaire who defeated him, but in the first battle his vision was damaged. He thought Cosmic Boy and Chemical King were the same person. While Klim announces his revenge plan, Shrinking Violet disables him, ending the threat.