Comic Title: Detective Comics #312
Publisher: DC (National Periodical Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: February 1963
On Sale Date: December 27, 1962 Newsstand Date December 27, 1962
Source: House Ad, World's Finest Comics #131, Page 13

Copyright Date December 27, 1962
Source: Library of Congress, Periodicals 1963

Newsstand Date December 27, 1962
Source: Newsdealer Magazine, V17 #11

Frequency: Monthly
Cover Price: $0.12
Page Count: 32
Circulation: 265000
Editor: Jack Schiff

Title: "J'onn J'onzz' Pesky Partner"
Pages: 12

Feature(s):
Martian Manhunter (of Earth-1)

Artist: Joe Certa

Reprinted In:
Showcase Presents:Martian Manhunter Vol. 2 TPB (2009)

Feature Character(s)

• Martian Manhunter (last appearance in Justice League of America #17; next appearance in Detective Comics #313)

Supporting Character(s)

• Captain Harding (last appearance in Detective Comics #311; next appearance in Detective Comics #314)
• Diane Meade (last appearance in Detective Comics #311; next appearance in Detective Comics #314)
• Zook (last appearance in Detective Comics #311; next appearance in Detective Comics #314)

Villain(s)

• Doc Duggan and his gang (no further appearances)

Synopsis:
J’onn J’onzz allows himself to be captured by a criminal gang in order to learn the location of their hide-out and leader. However, J’onn’s new pet Zook foils his plan by rescuing the Manhunter. Zook is able however to track down the gang with his glowing ears. J’onn rounds up the gang, then lets Zook turn them over to the police.