"City being attacked . . . beware Tarrano . . . you are in danger of -- !"

In year 2430, terror spreads when assassins strike down Earth's three major leaders at once. Were the treacherous Venusians behind the crime? Yet the leader of Venus Central State falls, too -- then the leader of Mars. Who is the Tarrano mentioned in the desperate warning?

In this fast-paced pulp classic, Jac Hallen of Inter-Allied News responds to an urgent message from his friend, brilliant scientist Dr. Brende. Hallen and Brende's beautiful daughter Eliza find themselves rushing to the North Pole -- into the clutches of Tarrano himself -- and then into the depths of interplanetary space!