The themes dealt with in Eon include alienation, change, the hope for adaptability and survival. The interior of the Stone is at once familiar and alien, with its seven chambers containing forests, lakes, cities, the machinery that generates power and that at an earlier time developed the infinite corridor called "the Way." The corridor defies the laws of physics as known to the new arrivals from Earth, who must adapt to all the unfamiliar phenomena.
Time is another important aspect. As characters move from the first to the seventh chambers and beyond, they travel by stages into the future until their own era is the distant past.
Another important theme relates to possibilities for social healing when there is willingness to forsake the past.
Repressive ideology is responsible for bad decisions by the Soviets, who attack on Earth and attempt to invade the Stone. Yet when Pavel Mirsky...