Comic Title: Action Comics #316
Publisher: DC (National Periodical Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: September 1964
On Sale Date: July 30, 1964 Copyright Date July 30, 1964
Source: Library of Congress, Periodicals 1964

Frequency: Monthly
Cover Price: $0.12
Page Count: 32
Editor: Mort Weisinger

Notes:
This issue contains a half-page feature: "Supergirl's Boy Friends".

Title: "Supergirl's Choice of Doom"
Pages: 10

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

Writer: Leo Dorfman
Artist: Jim Mooney

Reprinted In:
Showcase Presents Supergirl Vol. 2 TPB (2009)
Supergirl:The Silver Age Omnibus Vol. 2 HC (2018)

Feature Character(s)

• Supergirl (last appearance in Action Comics #315; next appearance in Action Comics #317)

Supporting Character(s)

• Fred Danvers (last appearance in Action Comics #315; next appearance in Action Comics #317)
• Edna Danvers (last appearance in Action Comics #315; next appearance in Action Comics #317)
• Zor-El (last appearance in Action Comics #315; next appearance in Action Comics #320)
• Allura (last appearance in Action Comics #315; next appearance in Action Comics #320)
• Dick Malverne (last appearance in Action Comics #314; next appearance in Action Comics #317)
• Lena Thorul (last appearance in Action Comics #314; next appearance in Action Comics #317)

Villain(s)

• The Zygor (appears in flashback and a computer simulation; no further appearances)

Guest Appearance(s)

• Superman (no appearance)

Flashback Appearance(s)

• Supergirl (last appearance in Action Comics #358; next appearance in Action Comics #252)
• Zor-El (last appearance in Action Comics #358; next appearance in Action Comics #252)
• Allura (last appearance in Action Comics #358; next appearance in Action Comics #252)

Cameo Appearance(s)

• Lori Lemaris (no real appearances; appear only in a computer simulation)
• Jerro (no real appearances; appear only in a computer simulation)
• Ronal (no real appearances; appear only in a computer simulation)

Comments:
This story is continued from the second story of Action Comics #315.

Superman appears only as a computer simulation.

Synopsis:
Supergirl's Kryptonian parents realize their daughter is depressed after having abandoned her life as Linda Lee. Zor-El offers to use a computer to show her what the future will be like. The computer simulation shows her life on Earth with her parents.

While the simulation starts off favorably, the computer shows that Earth will be attacked by the Zygor, a creature responsible for an attack on Argo City. The creature hates Zor-El and has tracked him to Earth. The Zygor gains domination over Supergirl using Red Kryptonite, then forces her to choose whether to kill her father or Superman.

Supergirl is horrified by the simulation. Her parents suggest that if they return to Kandor, the Zygor will be unable to track Zor-El to Earth in the future. As a result, Zor-El and Allura return to Kandor, and the Danvers come back to Midvale. Zor-El never tells his daughter that the Zygor is long since dead, and that the computer simulation was fabricated as an excuse to return to Kandor.