Comic Title: Justice League of America #62
Publisher: DC (National Periodical Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: May 1968
On Sale Date: March 12, 1968 Newsstand Date March 12, 1968
Source: House Ad, Batman #201, Page 30

Newsstand Date March 12, 1968
Source: Direct Currents, Aquaman #39, Page 31

Newsstand Date March 12, 1968
Source: Newsdealer Magazine, V23 #1

Copyright Date March 12, 1968
Source: Library of Congress, Periodicals 1968

Frequency: Monthly, with the exception of Jan., Apr., July & Oct.; (semi-monthly, Nov.)
Cover Price: $0.12
Page Count: 32
Editor: Julius Schwartz

Title: "Panic from a Blackmail Box"
Pages: 23

Feature(s):
Justice League of America (of Earth-1)

Writer: Gardner F. Fox
Penciller: Mike Sekowsky
Inker: George Roussos

Reprinted In:
Justice League of America Archives Vol. 8 HC (2003)
Showcase Presents:Justice League of America Vol. 4 TPB (2009)
Justice League of America:The Silver Age Omnibus Vol. 2 HC (2016)

Feature Character(s)

• Justice League of America (last appearance in Justice League of America #61; next appearance in Action Comics #365)
• Batman (last appearance in Batman #201; next appearance in Action Comics #365)
• Flash (last appearance in Flash #179; next appearance in Action Comics #365)
• Green Lantern (last appearance in Green Lantern #60; next appearance in Green Lantern #61)
• Hawkman (last appearance in Hawkman #25; next appearance in Atom #37)
• Atom (last appearance in Brave and the Bold #77; next appearance in Atom #37)

Villain(s)

• Leo Locke and the Pyrotekniks (no further appearances)
• Bullets Jameson and the Bulleteers (a rival gang; no further appearances)

Guest Appearance(s)

• Iris Allen (last appearance in Flash #179; next appearance in Flash #180)

Other Character(s)

• Harold Loomis (an industrial engineer and businessman; Leo Locke's son; no further appearances)
• Homer Gridley (an archaeologist and museum director; no further appearances)
• Marley Thorne (editor of the Lakeside City Tribune; no further appearances)
• Several reporters (no further appearances)

Synopsis:
In 1945, an investigative reporter drowned in Lake Michamaw. Lost with him was a box of incriminating evidence he had compiled. Now the box is found, and industrial engineer Harold Loomis is revealed to be the son of gangster Leo Locke, while archaeologist Homer Gridley is exposed as a former fraud. The two unite to find and take revenge upon whoever found the evidence against them and turned it over to the newspapers.

Flash is drawn into the case by his brother-in-law, the editor of the paper that first published the information, and he in turn involves the Justice League. While investigating, the members become involved in a gang war between the Pyrotekniks, criminals using special "fireworks" weapons, and the Bulleteers, their rivals.

They capture the first gang, and discover the leader to be Leo Locke, who found the box of evidence, and exposed his own son as part of a plot to trap his rivals. Now that he is in jail, he will not be able to protect Loomis as planned, so he begs the JLA to do so for him. Finding Loomis and Gridley and taking them to a safe place, the super-heroes invade the Bulleteers' headquarters, and after evading a series of traps, capture the gang.