The earth is rocked to its foundation, and the end of the world
is threatened, by a mysterious, unseen power known only as
“KWO.” At regular intervals, gigantic earthquakes and tidal
waves visit the earth, destroying great cities and spreading
terror. Dr. Ferdinand Gresham, American astronomer, attributes
all this to the Seuen-H’Sin, a Chinese sect with which he is
familiar. Finally, when the life of the world seems doomed,
he gains permission from the U. S. Navy Department to proceed
in the destroyer, Albatross, to the lair of “KWO” and do
everything possible to stop the world-wide havoc. Accompanied
by his friend, Arthur (who tells the story), the astronomer
sails to a lonely spot in the frozen North, where they discover
the diabolical power plant of “KWO.” It has developed,
meanwhile, that “KWO” and his sorcerers are moon worshipers and
are endeavoring to create a second moon by splitting the earth
in two. In the Moon God’s Temple Dr. Gresham and his friend,
disguised as Chinese, witness the weird rites of the sect, in
which a human being is sacrificed, and then their identity is
discovered. Attacked, they flee back toward their ship, but
the earth seems suddenly to open, and Arthur is swallowed in a
black pit.