This article is written
from the Real World
point of view
Edward Stratemeyer 002
Galaxy X Trilogy
Galaxy XX-plosionGalaxyx3
Cover art of books one, two and three.
Galaxy X
The X-Factor
House name Franklin W. Dixon
Publication information
Published May 19, 2009-September, 2009
Media type(s) Print (paperback)

Galaxy X is the third Hardy Boys Undercover Brothers trilogy. The first book, Galaxy X was published in May 2009, with books two, X-plosion, and three, The X-Factor following in July and September, respectively.


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