Comic Title: World's Finest Comics #107
Publisher: DC (National Comics Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: February 1960
On Sale Date: December 3, 1959 Copyright Date December 3, 1959
Source: Library of Congress, Periodicals 1959

Newsstand Date December 3, 1959
Source: Newsdealer Magazine, V14 #10

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

Title: "The Secret of the Time-Creature"
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 #260; next appearance in Superman #135)
• Batman (last appearance in Batman #129; next appearance in Brave and the Bold #28)

Supporting Character(s)

• Robin (last appearance in Batman #129; next appearance in Detective Comics #276)
• Perry White (last appearance in Action Comics #260; next appearance in Superman #135)
• Carter Nichols (last appearance in Batman #127; next appearance in Detective Comics #295)

Villain(s)

• An energy creature (destroyed in this story; no further appearances)

Other Character(s)

• Two alien scientists, residents of ancient Egypt and Macedonia (no further appearances)

Synopsis:
A mysterious energy creature menaces the Mediterranean, forcing the military to call Superman for help. Batman comes too and learns that the creature can be stopped using a weapon left behind in the past by aliens.

Superman delays the creature, while Batman and Robin travel to ancient Egypt using Professor Nichols time machine. They retrieve the weapon, hiding it inside an unearthed pyramid. In the present Superman recovers the weapon and destroys the creature.