The following is a Kirkus review of this novel, de Wohl's only entry into the field of Catholic science fiction.

This is science-fiction with a
religious content and should surprise
those readers of The Restless Flame.
The Golden Thread and Set All Afire
who have found this author's
fictionized biographies of early
church father worthwhile in
scholarship and research. They will
not however be surprised at his able
arguing which here takes his earth
people to Mars and eventually to
avert, through spiritual concepts, a
Martian invasion. Test pilot Chris
Cary, who has a mystic feeling for the
Catholic Church, is better able to
absorb and understand the superiority
of ""unfallen"" Martians and see the
reality behind the myth than scientist
Brandeis whose use of new fuel and a
new design helicopter has taken them
to their destination. But the new
paradise has its serpent, Marmon, who
is transported to Mars and whose
perversion of fact and truth speed the
Martians to conquer Earth, for his own
satanic satisfaction. It is Chris'
faith, love and integrity that turn
the Martians back home when the
showdown cames. There's a girl, too,
and the earthmen-Martian adjustments
are interesting while the
double-conversion angle, to religion
and science-fiction, has good points.
It does help to take the comic book
quality out of SF.