Comic Title: World's Finest Comics #111
Publisher: DC (National Comics Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: August 1960
On Sale Date: June 7, 1960 Copyright Date June 7, 1960
Source: Library of Congress, Periodicals 1960

Frequency: Monthly, with the exception of January, April, July and October
Cover Price: $0.10
Page Count: 32
Editor: Jack Schiff

Title: "Superman's Secret Kingdom"
Pages: 13

Feature(s):
Superman (of Earth-1)
Batman (of Earth-1)

Writer: Bill Finger
Penciller: Dick Sprang
Inker: Sheldon Moldoff

Reprinted In:
World's Finest Comics Archives Vol. 3 HC (2005)
Showcase Presents:World's Finest Vol. 1 TPB (2007)
Batman & Superman in World's Finest Comics:The Silver Age Omnibus Vol. 1 HC (2016)
Batman & Superman in World's Finest Comics:The Silver Age Vol. 2 TPB (2018)

Feature Character(s)

• Superman (last appearance in Action Comics #266; next appearance in Superman #139)
• Batman (last appearance in Batman #133; next appearance in Detective Comics #282)

Supporting Character(s)

• Robin (last appearance in Batman #133; next appearance in Detective Comics #282)

Villain(s)

• Floyd Frisby (no further appearances)

Other Character(s)

• A secret South American tribe (no further appearances)

Synopsis:
Batman and Robin travel to South America where Superman disappeared over a week ago while stopping a volcano and tracking a criminal, Floyd Frisby. Deep in the jungle they encounter a hidden tribe. Robin believes they are going to attack so he strikes first. Batman puts a stop to the fight and is taken to the tribe’s king.

The king is Superman. The volcanic eruption gave Superman amnesia. He was found by the tribe who made he their leader when his powers matched those of a tribal legend.

Frisby arrives to claim that the Dynamic Duo is evil unless they unmask. Unwilling to do so, they escape into the ancient city. Batman returns to expose Frisby as the crook, while Robin paints an image of Clark Kent on the wall of a temple. Seeing the image jogs Superman’s lost memory. He and the Dynamic Duo return home with the captured crook in tow.