Comic Title: Adventures of Rex, the Wonder Dog #31
Publisher: DC (National Comics Publications, Inc.)
Address: 480 Lexington Avenue, New York, NY
Cover Date: Jan/Feb 1957
Approx. On Sale Date: November 1, 1956 Copyright Date October 30, 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: "Valley of the White Giants"
Pages: 8

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

Writer: John Broome
Penciller: Gil Kane
Inker: Bernard Sachs

Feature Character(s)

• Rex the Wonder Dog (last appearance in Adventures of Rex, the Wonder Dog #31; next appearance in Adventures of Rex, the Wonder Dog #32)

Supporting Character(s)

• Danny Dennis (last appearance in Adventures of Rex, the Wonder Dog #31; next appearance in Adventures of Rex, the Wonder Dog #32)

Villain(s)

• A tribe of pigmies (no further appearances)

Other Character(s)

• Wells Hartford (an explorer; no further appearances)
• A tribe of white giants (no further appearances)
• Mr. Langwell (a magazine editor; next appearance in Adventures of Rex, the Wonder Dog #36)

Synopsis:
Rex joins explorer Wells Hartford in the jungles of Africa in search of a lost tribe of white giants. Rex saves Hartford from a tribe of evil pigmies and together they find the lost tribe. However, fearing the discovery of their tribe will bring about their own end, the giants refuse to allow Hartford or Rex to leave. Rex creates a diversion, then together he and the explorer escape the jungle. Following the adventure, Hartford decides it is best to keep the discovery a secret to protect the giants. He and Rex destroy all evidence of the adventure.