Comic Title: Blackhawk #128
Publisher: DC (National Comics Publications, Inc.)
Address: 480 Lexington Avenue, New York, NY
Cover Date: September 1958
On Sale Date: July 10, 1958 Copyright Date July 10, 1958
Source: Library of Congress, Periodicals 1958

Frequency: Monthly
Cover Price: $0.10
Page Count: 32
Editor: Jack Schiff

Title: "Killer Shark's Secret Lair"
Pages: 8

Feature(s):
Blackhawk (of Earth-1)

Writer: Jack Miller
Penciller: Dick Dillin
Inker: Charles Cuidera

Feature Character(s)

• Blackhawk (last appearance in Blackhawk #128; next appearance in Blackhawk #129)

Supporting Character(s)

• The Blackhawks (last appearance in Blackhawk #128; next appearance in Blackhawk #129)
• Hendrickson (last appearance in Blackhawk #128; next appearance in Blackhawk #129)
• Stanislaus (last appearance in Blackhawk #128; next appearance in Blackhawk #129)
• Andre (last appearance in Blackhawk #128; next appearance in Blackhawk #129)
• Chuck (last appearance in Blackhawk #128; next appearance in Blackhawk #129)
• Olaf (last appearance in Blackhawk #128; next appearance in Blackhawk #129)
• Chop Chop (last appearance in Blackhawk #128; next appearance in Blackhawk #129)

Villain(s)

• Killer Shark (last appearance in Blackhawk #123; next appearance in Blackhawk #130)
• Killer Shark's men (no further appearances)

Other Character(s)

• Kenton Knowles (a wealthy tycoon; no further appearances)

Synopsis:
A series of unexplained robberies baffles the Blackhawks. Kenton Knowles is the latest victim, one day after he purchased a giant tiger shark. Blackhawk stakes out a museum where a stuffed whale, that was sold with the shark, is displayed. Killer Shark and his men emerge from the whale to rob the museum. The Blackhawks capture some of his men, but Killer Shark eludes capture.

The Blackhawks return to the location where the giant creatures were sold. The boat is gone, but Blackhawk follows it in the Blackhawk submarine. Killer Shark destroys the sub with a floating sawfish machine. Blackhawk still manages to defeat his nemesis by attaching his belt-radio to the ship to track it. Killer Shark is then brought to justice.