Why didn't the monster in Mary Shelley's Frankensteincreate another partner for himself? He had Frankenstein's diary with him and was highly...

Let's
observe the fact that is, of course, a novel, a work of . As such, it's
creator, , was as free to conjure fictional worlds as herwas to ponder the nature of its
creator, . In short, thatdemanded of its creator that he build a female companion for itself in
exchange for disappearing into the vast jungles of South America thousands of miles away is but
a plot device the author employed for narrative purposes. We shouldn't read too much into that
detail. The creature makes this demand of Victor because that was the path Mary Shelley chose to
take in extending her premise. The point of Shelley's novel, beyond its origins as a story to be
shared between her husband and Lord Byron and herself, was to question the morality of pursuing
an enterprise without full consideration of the consequences of one's action. Why an intelligent
and capable being such as Victor's creation did not simply construct a female companion for
itself, therefore, was hardly the point.

That said, the question has been
posed and must be answered. What we know from Chapters 16 and 17 of
Frankenstein is that the creature viewed Victor as its creator, as the sole
being capable of duplicating what he, Victor, had succeeded in doing once earlier. The creature
learned, as he tells Victor during their meeting in the mountains, "that you were my
father, my creator; and to whom could I apply with more fitness than to him who had given me
life?" The creature did not consider that it could replicate itself, and certainly not in
the female form. A further passage, in which the creature describes the experience of being shot
by a frightened villager, reads as follows: 

"The
ball had entered my shoulder, and I knew not whether it had remained there or passed through; at
any rate I had no means of extracting it."

By
claiming that it had no means of extracting the musket ball or bullet from its shoulder, the
creature is revealing that it lacks the technological means necessary to perform a simple
operation. If it can't perform such a simple operation, then how could it possibly build another
creature? The creature is convinced that only Victor has the knowledge and the means (e.g.,
access to the laboratory facilities necessary for such a complex undertaking) necessary to
construct a female companion. Note in the following passage the reaffirmation that only its
creator can create again:

"At length I wandered
towards these mountains, and have ranged through their immense recesses, consumed by a burning
 passion which you alone can gratify. . I am alone and miserable;
man will not associate with me; but one as deformed and horrible as myself would not deny
herself to me. My companion must be of the same species and have the same defects.
This being you must create." [Emphasis added]

In the above passage, the creature emphasizes that there is only one being capable of
creating a female version of itself, and that is the one who created it. The creature is
intelligent and capable, but it is no god. Victor, in the eyes of the creature, is a failed god,
but one that can be at least partially redeemed.