Comic Title: Superman #209
Publisher: DC (National Periodical Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: August 1968
On Sale Date: June 20, 1968 Copyright Date June 20, 1968
Source: Library of Congress, Periodicals 1968

Newsstand Date June 20, 1968
Source: Comic Reader, #67

Frequency: Monthly, with the exception of Mar. and Sept.
Cover Price: $0.12
Page Count: 32
Editor: Mort Weisinger

Title: "The Clark Kent Monster"
Pages: 16

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

Writer: Cary Bates
Penciller: Curt Swan
Inker: Jack Abel

Feature Character(s)

• Superman (last appearance in World's Finest Comics #177; next appearance in Superman's Girl Friend, Lois Lane #85)

Supporting Character(s)

• Lois Lane (last appearance in Superman's Girl Friend, Lois Lane #84; next appearance in Superman's Girl Friend, Lois Lane #85)
• Jimmy Olsen (last appearance in Superman's Pal Jimmy Olsen #112; next appearance in Superman's Girl Friend, Lois Lane #87)
• Perry White (last appearance in Superman's Girl Friend, Lois Lane #84; next appearance in Superman's Girl Friend, Lois Lane #85)

Villain(s)

• An alien brain creature (no further appearances)
• The Marauder Mob (no further appearances)

Comments:
Part II:"A Menace Named Clark Kent"

Synopsis:
When an alien brain creature comes to Earth it attacks Superman with deadly mento-bursts. The blasts are powerful, but they are deflected off Superman's invulnerable body and back at the creature. The creature is destroyed, but it is able to connect with some of Superman's brain cells and reform in the identity of Clark Kent.

The alien Clark heads for the Daily Planet and displays uncharacteristic self-confidence. He single-handedly defeats the Marauder Mob with new powers. As his power increased, he becomes a menace. The military attacks him, but he can only be defeated when Superman carries him into space. When the threat is over Superman resumes his mild-mannered role.