Comic Title: Adventures of Rex, the Wonder Dog #46
Publisher: DC (National Comics Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: Sep/Oct 1959
On Sale Date: July 7, 1959 Copyright Date July 7, 1959
Source: Library of Congress, Periodicals 1959

Newsstand Date July 7, 1959
Source: Newsdealer Magazine, V14 #5
Listed as November

Frequency: Bi-monthly
Cover Price: $0.10
Page Count: 32
Editor: Julius Schwartz

Title: "Mystery of the Magnetic Monsters"
Pages: 10

Feature(s):
Rex the Wonder Dog (of Earth-1)

Writer: John Broome
Penciller: Gil Kane
Inker: Bernard Sachs

Feature Character(s)

• Rex the Wonder Dog (last appearance in Adventures of Rex, the Wonder Dog #45; next appearance in Adventures of Rex, the Wonder Dog #46)

Supporting Character(s)

• John Rayburn (last appearance in Adventures of Rex, the Wonder Dog #45; no further appearances)

Villain(s)

• A race of magneto-beings (no further appearances)

Other Character(s)

• O-Tar (last appearance in Adventures of Rex, the Wonder Dog #45; no further appearances)
• Lady Elen (last appearance in Adventures of Rex, the Wonder Dog #45; no further appearances)

Synopsis:
Rex and Professor John Rayburn attempt to visit their friends O-Tar and Elen on the giant world of Lamenor. However, instead of reaching Lamenor, they land on that planet's moon. O-Tar and Elen are on the moon for their honeymoon, but their ship has been lost. While Rayburn retrieves the ship, Rex battles a race of moon creatures determined to get the ship as a prelude to an invasion of Lamenor. Rex succeeds in delaying the creatures. O-Tar and Elen return home with their ship and a warning about the moon creatures. Rex and Rayburn then return to Earth.