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: "Clue of the Secret Seven"
Pages: 6

Feature(s):
Detective Chimp (of Earth-1)

Writer: John Broome
Artist: Carmine Infantino

Feature Character(s)

• Detective Chimp (last appearance in Adventures of Rex, the Wonder Dog #30; next appearance in Adventures of Rex, the Wonder Dog #32)

Supporting Character(s)

• Sheriff Edward Chase (last appearance in Adventures of Rex, the Wonder Dog #30; next appearance in Adventures of Rex, the Wonder Dog #32)

Villain(s)

• Two escaped criminals (no further appearances)

Other Character(s)

• The Secret Seven (a boys club; Timmy Watkins named; next appearance in Adventures of Rex, the Wonder Dog #42)

Synopsis:
Bobo joins a boys club called the Secret Seven. The boys make up secret passwords and hand signals to use to talk to one another. When one of the boys doesn't show up for a picnic, Bobo visits his house. Bobo discovers crooks there and signals his friend to call the sheriff. Bobo then delays the crooks until Sheriff Chase arrives.