Comic Title: Adventures of Rex the Wonder Dog #14
Publisher: DC (National Comics Publications, Inc.)
Address: 480 Lexington Avenue, New York, NY
Cover Date: Mar/Apr 1954
On Sale Date: January 8, 1954 Copyright Date January 6, 1954
Source: Library of Congress, Periodicals 1954
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.

Newsstand Date January 8, 1954
Source: Newsdealer Magazine, V8 #11

Frequency: Bi-monthly
Cover Price: $0.10
Page Count: 32
Editor: Julius Schwartz

Title: "The Valley of the Thunder King"
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 #14; next appearance in Adventures of Rex the Wonder Dog #15)

Supporting Character(s)

• Danny Dennis (last appearance in Adventures of Rex the Wonder Dog #14; next appearance in Adventures of Rex the Wonder Dog #15)

Villain(s)

• A gang of looters (disguised as Aztecs; no further appearances)

Other Character(s)

• Malcolm Barrett (an archaeologist; next appearance in Adventures of Rex the Wonder Dog #16)

Synopsis:
Danny and Rex join Professor Barrett to uncover a recently discovered Aztec pyramid. The professor is attacked by a group of Aztecs. When a nearby volcano erupts, Rex must find the professor and rescue him before he is killed in the disaster. After rescuing the professor, Rex identifies the Aztecs as crooks. They had disguised themselves as Aztec spirits to scare people away while they looted the pyramid.