Comic Title: Adventures of Rex, the Wonder Dog #29
Publisher: DC (National Comics Publications, Inc.)
Address: 480 Lexington Avenue, New York, NY
Cover Date: Sep/Oct 1956
Approx. On Sale Date: July 3, 1956 Copyright Date July 1, 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: Bi-monthly
Cover Price: $0.10
Page Count: 32
Editor: Julius Schwartz

Title: "Prisoners of the Iceberg"
Pages: 8

Feature(s):
Rex the Wonder Dog (of Earth-1)

Writer: Bob Haney
Penciller: Gil Kane
Inker: Bernard Sachs

Feature Character(s)

• Rex the Wonder Dog (last appearance in Adventures of Rex, the Wonder Dog #28; next appearance in Adventures of Rex, the Wonder Dog #29)

Supporting Character(s)

• Danny Dennis (last appearance in Adventures of Rex, the Wonder Dog #28; next appearance in Adventures of Rex, the Wonder Dog #29)
• Major Dennis (last appearance in Adventures of Rex, the Wonder Dog #27; next appearance in Adventures of Rex, the Wonder Dog #34)

Villain(s)

• Three foreign agents (no further appearances)

Synopsis:
Danny and Rex travel to the arctic to pick up Major Dennis who has been living on an iceberg for the last month. When they arrive, they find the Major's hut missing. Rex becomes a sled dog, pulling Danny in search of his father. They finally locate the missing Major held captive by three foreign agents. The foreigners have discovered uranium deposits and seek to eliminate the Major as a witness. Rex rescues Major Dennis then helps him capture the spies.