Comic Title: Action Comics #278
Publisher: DC (National Comics Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: July 1961
On Sale Date: May 31, 1961 Newsstand Date May 31, 1961
Source: House Ad, Superman's Pal Jimmy Olsen #54, Page 10

Copyright Date May 31, 1961
Source: Library of Congress, Periodicals 1961

Frequency: Monthly
Cover Price: $0.10
Page Count: 32
Editor: Mort Weisinger

Title: "The Super Powers of Perry White"
Pages: 13

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

Writer: Jerry Coleman
Penciller: Curt Swan
Inker: Stan Kaye

Reprinted In:
Superman #227 (1970)
Showcase Presents Superman Vol. 3 TPB (2007)

Feature Character(s)

• Superman (last appearance in Superman's Pal, Jimmy Olsen #54; next appearance in Action Comics #278)

Supporting Character(s)

• Lois Lane (last appearance in Superman's Pal, Jimmy Olsen #54; next appearance in Superman #147)
• Perry White (last appearance in Superman's Pal, Jimmy Olsen #54; next appearance in Superman #147)
• Jimmy Olsen (last appearance in Superman's Pal, Jimmy Olsen #54; next appearance in Superman #147)

Villain(s)

• Xasnu and Y’Trom (planet creatures from Zelm; no further appearances)

Guest Appearance(s)

• Supergirl (last appearance in Action Comics #277; next appearance in Action Comics #278)

Synopsis:
Perry White eats the fruit of a strange plant in his garden. The fruit gives him super powers which he uses to become Masterman, a new super hero. Eventually his mind is taken over by Xasnu, a plant creature from another world. It was the fruit which allowed him to take over Perry’s mind and the powers were a side effect.

Xasnu, as Perry, attempts to kill Superman, knowing he is the one person who can stop an invasion. He learns Superman’s secret identity, but Superman has hypnotized himself not to feel pain when exposed to Kryptonite.

Superman is forced to hide at his Fortress of Solitude. Perry attacks him there and nearly kills the Man of Steel. Supergirl arrives just in time to save her cousin by exposing Perry to White Kryptonite, which destroys plant life, including the one controlling Perry. His memory is lost for the entire experience, so he does not remember what happened.