Comic Title: All-Flash #31
Publisher: DC (National Comics Publications, Inc.)
Address: 480 Lexington Avenue, New York, NY
Cover Date: Oct/Nov 1947
Approx. On Sale Date: August 29, 1947 Copyright Date August 27, 1947
Source: Library of Congress, Periodicals 1946-1947
Until 1958 DC did not report actual on sale dates to the copyright office
The publication dates listed in LoC records are NOT release dates.

Frequency: Bi-monthly
Cover Price: $0.10
Page Count: 48
Editor: Sheldon Mayer

Title: "The Secret City"
Pages: 12

Feature(s):
Flash (Jay Garrick of Earth-2)

Writer: Robert Kanigher
Penciller: Carmine Infantino
Inker: Frank Giacoia

Reprinted In:
Flash #229 (1974)
Flash:A Celebration of 75 Years HC (2015)

Feature Character(s)

• Flash (last appearance in All-Star Comics #37; next appearance in All-Flash #31)

Villain(s)

• Soldiers of the Secret City (no further appearances)

Other Character(s)

• Dale Thomas (a newspaper publisher; no further appearances)
• Dr. Maria Flura (next appearance in Flash Comics #94)
• Jim Ronson (a reporter; no further appearances)

Synopsis:
The Flash, joined by a newspaper publisher and scientist Dr. Flura, investigates the disappearance of reporter Jim Ronson in the Amazon jungle. The Flash and his companions are soon attacked by soldiers from a secret city hidden in the jungle. Ronson is their prisoner. Flash rescues Ronson, then convinces the inhabitants of the city to work peacefully with the world, instead of trying to conquer it.