Comic Title: Detective Comics #234
Publisher: DC (National Comics Publications, Inc.)
Address: 480 Lexington Avenue, New York, NY
Cover Date: August 1956
Approx. On Sale Date: June 26, 1956 Copyright Date June 24, 1956
Source: Library of Congress, Periodicals 1956
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
Cover Price: $0.10
Page Count: 32
Editor: Jack Schiff

Title: "Batman and Robin's Greatest Mystery"
Pages: 12

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

Writer: Edmond Hamilton
Penciller: Sheldon Moldoff
Inker: Stan Kaye

Reprinted In:
Batman #218 (1970)
Batman:The Silver Age Omnibus Vol. 1 HC (2023)

Feature Character(s)

• Batman (last appearance in Batman #101; next appearance in Batman #102)

Supporting Character(s)

• Robin (last appearance in Batman #101; next appearance in Batman #102)
• Commissioner Gordon (last appearance in Batman #101; next appearance in Batman #102)
• Alfred Pennyworth (last appearance in Batman #101; next appearance in Detective Comics #237)

Villain(s)

• Jay Caird and his gang (no further appearances)

Other Character(s)

• An unnamed man from the Gotham Research Foundation (no further appearances)

Flashback Appearance(s)

• Batman (last appearance in Detective Comics #231; next appearance in Batman #108)
• Commissioner Gordon (next appearance in Superman #76)

Synopsis:
Batman and Robin track down a crook, Jay Caird, who has stolen a sonic weapon. When the weapon is turned on the Dynamic Duo, they are knocked out and begin suffering from amnesia. Commissioner Gordon allows them to search the police files for clues to their secret identities in hopes that it will restore their lost memories.

Batman finds several clues while reading the files. He learns that he is wealthy, is a pilot, and a polo player. With the possibilities narrowed, Batman is able to guess that he is Bruce Wayne. He drives to Wayne Manor where his memories begin to return. With his recovery, he remembers where Caird was headed, and together with Robin, Batman captured the crook.