Comic Title: World's Finest Comics #166
Publisher: DC (National Periodical Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: May 1967
On Sale Date: March 9, 1967 Newsstand Date March 9, 1967
Source: Direct Currents, Batman #191, Page 32

Copyright Date March 9, 1967
Source: Library of Congress, Periodicals 1967

Frequency: Monthly, with the exception of Jan., April and July
Cover Price: $0.12
Page Count: 32
Editor: Mort Weisinger

Title: "The Danger of the Deadly Duo"
Pages: 17

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

Writer: James Shooter
Penciller: Curt Swan
Inker: George Klein

Reprinted In:
Superman:Past and Future TPB (2009)
Showcase Presents:World's Finest Vol. 3 TPB (2010)

Feature Character(s)

• Superman (no appearance)
• Batman (no appearance)

Guest Star(s)

• Superman of 2967 (last appearance in Action Comics #339; no further appearances)
• Batman of 2967 (Bron Wayn E7705; no further appearances)

Villain(s)

• Muto (last appearance in Action Comics #339; no further appearances)
• Joker XX (dies in this story; no further appearances)

Cameo Appearance(s)

• Superman VI, Batman VI, Superman XV, Batman XV, and Batman XIX (all in flashback)
• Joker XIX (in flashback)

Comments:
Superman and Batman do not appear in this story which features their descendants from the year 2967.

This is the fourth and final story in a series of Superman of 2965 tales.

Synopsis:
Muto the mutant enemy of Superman's descendent in the 30th century meets the Joker's descendent. Although they begin fighting with each other when they attempt the same robbery, the two villains decide to team up. When they encounter the Superman of 2967, they are able to defeat him easily using team tactics.

Superman is discouraged by his defeat and returns to his Fortress. Inside he meets the new Batman, Bron Wayn E7705. Batman wants to avenge the death of his father Batman XIX at the hands of the current Joker's father.

The future Superman and Batman team is able to stop the next robbery of Muto and Joker. The villains escape, but Batman is able to track them. When the heroes catch up, Superman beats Muto. Batman duels with the Joker, who is accidentally electrocuted.