Comic Title: Action Comics #336
Publisher: DC (National Periodical Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: April 1966
On Sale Date: February 24, 1966 Newsstand Date February 24, 1966
Source: Direct Currents, Superman's Girl Friend Lois Lane #64, Page 10

Copyright Date February 24, 1966
Source: Library of Congress, Periodicals 1966

Frequency: Monthly (semi-monthly, March)
Cover Price: $0.12
Page Count: 32
Editor: Mort Weisinger

Title: "The Forbidden Fortress of Solitude"
Pages: 11

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

Writer: Otto Binder
Artist: Jim Mooney

Reprinted In:
Supergirl:The Silver Age Omnibus Vol. 2 HC (2018)

Feature Character(s)

• Supergirl (last appearance in Action Comics #335; next appearance in Adventure Comics #342)

Supporting Character(s)

• Fred Danvers (last appearance in Action Comics #335; next appearance in Action Comics #370)
• Edna Danvers (last appearance in Action Comics #335; next appearance in Action Comics #370)
• Dick Malverne (last appearance in Action Comics #335; next appearance in Action Comics #340)
• Comet (last appearance in Superman's Girl Friend, Lois Lane #56; next appearance in Adventure Comics #343)

Villain(s)

• Jak-Thal (last appearance in Action Comics #335; no further appearances)

Guest Appearance(s)

• Superman (last appearance in World's Finest Comics #156; next appearance in Superman #185)
• Lois Lane (last appearance in Superman's Girl Friend, Lois Lane #64; next appearance in Superman #185)

Other Character(s)

• Bizarro Supergirl (no further appearances)
• Inhabitants of Bizarro World (no further appearances)
• A disfigured soldier (no further appearances)

Cameo Appearance(s)

• Three former Miss Cosmos winners (including Zilya; in flashback to the second story of Action Comics #335)

Comments:
This story is continued from the second story of Action Comics #335.

Synopsis:
Supergirl seeks a cure for the disfigurement she suffered at the hands of Jak-Thal. Superman fails to find a solution, so Supergirl resorts to wearing a mask. After helping a soldier through plastic surgery to restore his face, Supergirl flies to Bizarro World to stop an interplanetary collision.

Supergirl's appearance is considered beautiful on Bizarro World. The Bizarros create and imperfect duplicate of her, which results in a Bizarro-Supergirl with a pretty face. The Bizarro-Supergirl flies to Earth and plays a trick on Superman by keeping him out of the Fortress of Solitude.

The real Supergirl then returns to Earth where she dodges Dick Malverne since her appearance is embarassing. When he requests a photo, Linda puts on a mask and her crown to oblige him. After Dick leaves, Linda discovers that Jak-Thal created an antidote and placed it in the crown. When Linda put on the crown, her face was restored.