Comic Title: World's Finest Comics #42
Publisher: DC (National Comics Publications, Inc.)
Address: 480 Lexington Avenue, New York, NY
Cover Date: Sep/Oct 1949
Approx. On Sale Date: July 29, 1949 Copyright Date July 27, 1949
Source: Library of Congress, Periodicals 1949
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: $0.15
Page Count: 72
Editor: Jack Schiff

Title: "The Amazing Adventure of Batman and Marco Polo"
Pages: 13

Feature(s):
Batman (of Earth-2)

Writer: Bill Finger
Artist: Jim Mooney

Reprinted In:
Batman:The Golden Age Omnibus Vol. 6 HC (2019)

Feature Character(s)

• Batman (last appearance in Detective Comics #151; next appearance in Batman #55)

Supporting Character(s)

• Robin (last appearance in Detective Comics #151; next appearance in Star Spangled Comics #97)
• Carter Nichols (last appearance in Batman #52; next appearance in Batman #58)

Villain(s)

• Bahung and his men (no further appearances)
• Wong Tso (a traitor; no further appearances)

Other Character(s)

• Marco Polo (no further appearances)
• Kubla Khan (no further appearances)
• Chung Lum (a curio shop owner; no further appearances)

Synopsis:
Bruce Wayne discovers a 13th century chinese rocket that displays Batman's picture. Professor Nichols sends him Bruce and Dick back in time to meet Marco Polo and discover the secret of the rocket. They save Polo's life, but they are unable to stop his rival, Bahung, from taking over Polo's territory and troops with a deceitful trick.

Batman and Robin then ride to warn Kubla Khan about Bahung's invasion. To earn the Khan's trust, Batman and Robin perform circus tricks. They then expose a traitor, Wong Tso, who had conspired with Bahung. With the warning Khan is able to prepare by using newly invented gunpowder to create rockets. He uses Batman's face to scare off the attackers. The Dynamic Duo then return to their own time period.