Comic Title: Action Comics #303
Publisher: DC (National Periodical Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: August 1963
On Sale Date: June 27, 1963 Copyright Date June 27, 1963
Source: Library of Congress, Periodicals 1963

Frequency: Monthly
Cover Price: $0.12
Page Count: 32
Editor: Mort Weisinger

Title: "The Monster from Krypton"
Pages: 12

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

Writer: Edmond Hamilton
Penciller: Curt Swan
Inker: George Klein

Reprinted In:
Adventure Comics #420 (1972)
Showcase Presents Superman Vol. 4 TPB (2008)

Feature Character(s)

• Superman (last appearance in Superman #163; next appearance in Superman's Girl Friend, Lois Lane #43)

Supporting Character(s)

• Perry White (last appearance in Superman #163; next appearance in Superman's Girl Friend, Lois Lane #43)
• Jimmy Olsen (last appearance in Superman #163; next appearance in Superman's Girl Friend, Lois Lane #43)
• Lois Lane (last appearance in Superman #163; next appearance in Superman's Girl Friend, Lois Lane #43)

Guest Appearance(s)

• Supergirl (last appearance in Action Comics #302; next appearance in Action Comics #303)
• Superman Emergency Squad (last appearance in Superman's Girl Friend, Lois Lane #41; next appearance in Superman's Pal, Jimmy Olsen #73)
• Jor-El (in flashback; last appearance in Superboy #106; next appearance in Adventure Comics #313)
• Lara (in flashback; last appearance in Superboy #106; next appearance in Adventure Comics #313)
• Kal-El (as a baby on Krypton; last appearance in Superboy #106; next appearance in Adventure Comics #313)

Other Character(s)

• Ace (a helicopter pilot; no further appearances)
• General Wardel and various military officers (no further appearances)

Synopsis:
Superman is transformed into a Kryptonian Drang monster by Red Kryptonite. Jimmy Olsen believes the monster has killed Superman, so he helps the military attack the beast. Superman tries to communicate the truth, but his efforts are foiled by his attackers. Finally, he is able to relay a message to Supergirl, who calls off the assault. The transformation eventually wears off, restoring the Man of Steel’s true appearance.