Published: October 1961
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Tom Granger must discover how to defeat an alien army riding invisible dinosaurs.
Cover story.
Story Featuring Space Museum
Letter Column Featuring Spotlight on Science
Letters from T. D., L. E., P. W., I. A., all only identified by their initials and answered by the "Science Editor" (likely letters written by DC staff).
"Because a red-hued star in the constellation Scorpius..."
Ad Featuring Wallace Brown Greeting Cards
Back cover.
Ad Featuring Jowett Institute of Physical Training
Inside back cover.
Ad Featuring 150 Civil War Soldiers
Ad Featuring Frontier Cabin
Ad Featuring Tootsie Roll Ice Cream Bar
Ad Featuring Revolutionary War Soldiers
Ad Featuring Centre Coins
Ad Featuring Tootsie [all other candies]
Ad Featuring Palisades Amusement Park Admission
Ad Featuring Tootsie Roll
Ad Featuring Art Instruction, Inc. courses
Inside front cover.
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