Comic Title: Adventure Comics #420
Publisher: DC (National Periodical Publications, Inc.)
Address: 909 Third Avenue, New York, NY
Cover Date: June 1972
On Sale Date: April 27, 1972 Newsstand Date April 27, 1972
Source: Direct Currents, Batman #242, Page 30

Newsstand Date April 27, 1972
Source: House Ad, Adventure Comics #419, Page 47

Newsstand Date April 27, 1972
Source: Comic Reader, #83

Copyright Date April 27, 1972
Source: Library of Congress, Periodicals 1972

Frequency: Monthly (semi-monthly, Mar.)
Cover Price: $0.25
Page Count: 48
Editor: Joe Orlando

Title: "The Monster from Krypton"
Pages: 12

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

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

Reprinted From:
Action Comics #303 (1963)

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.