 After their defeat by Cupia, what do the remaining Formians travel through during their escape? What is on the other side and what do the Formians do to it?
6 Twelve months ago he would have been available, for he was then quietly visiting at my farm, after five earth-years spent on the planet Venus, where, by the aid of radio, he had led the Cupians to victory over their oppressors, a human-brained race of gigantic black ants. He had driven the last ant from the face of continental Poros, and had won and wed the Princess Lilla, who had borne him a son to occupy the throne of Cupia. The last of the ant-men and their ally, the renegade Cupian Prince Yuri, had presumably perished in an attempt to escape by flying through the steam-clouds which completely hem in continental Poros.
 Steam clouds over boiling seas. On the other side they find a new continent, which they dub New Formia.
 Steam clouds over bloody seas. On the other side they find a new continent, which they use as fodder for military and industrial growth.  Poison clouds over magma seas. On the other side they find Myles Cabot, ship wrecked on an island. They use Cabot’s knowledge to get revenge on the Cupians.  Steam clouds over boiling seas. On the other side they find a new continent, which they dub New Formia.  Steam clouds over bloody seas. On the other side they find a new continent inhabited by a forgotten race of Cupians, whom the Formians enslave in order to take the land as theirs.