Comic Title: Batman #89
Publisher: DC (National Comics Publications, Inc.)
Address: 480 Lexington Avenue, New York, NY
Cover Date: February 1955
Approx. On Sale Date: December 2, 1954 Copyright Date November 30, 1954
Source: Library of Congress, Periodicals 1955
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: Monthly, with the exception of Jan., May, July, and Nov.
Cover Price: $0.10
Page Count: 32
Editor: Jack Schiff

Title: "The Seven Wonders of the Underworld"
Pages: 8

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

Penciller: Sheldon Moldoff
Inker: Charles Paris

Feature Character(s)

• Batman (last appearance in Batman #89; next appearance in Batman #89)

Supporting Character(s)

• Robin (last appearance in Batman #89; next appearance in Batman #89)

Villain(s)

• Vince Varden and his gang (Weedy named; no further appearances)

Synopsis:
Underworld chief Vince Varden gathers seven amazing inventions designed for criminal purposes. The last of these inventions is a gas that Varden believes will end Batman's career.

Varden's gang use the machines to rob Gotham City. Batman tries to stop their first crime, but the inventions allow the crooks to escape. Batman then meets the crooks at their next robbery and is exposed to the gas.

While trailing the crooks back to their hide-out, Batman's chest emblem and Robin's "R" fall off their costumes. Batman realizes that the gas must destroy silk, including their bat-ropes. When Batman attempts to use the bat-rope, it breaks. The crooks think Batman has fallen to his death, but Batman tricks them with a dummy. Finally, Batman and Robin apprehend the crooks and capture the crime inventions.