Men (called An, pronounced "Arn") and women (called Gy-ei, pronounced "Jy-ei") have equal rights. The women are as strong as, if not stronger than the men. They marry for just three years, after which they are free to remarry or to remain single.
Their religion posits the existence of a superior being but does not dwell on his nature. The Vril-ya believe in the permanence of life, which according to them is not destroyed but merely changes form.
The narrator adopts the attire of his hosts and begins also to adopt their customs. Zee falls in love with him and tells her father, who orders Taee to kill him with his staff. Eventually both Taee and Zee conspire against such a command, and Zee leads the narrator through the same chasm which he first descended. Returning to the surface, he warns that in time the Vril-ya will run out of habitable space underground and will claim the surface of the Earth, destroying mankind in the process, if necessary.