What is the main setting in the novel, Children of Time?

The Gilgamesh is the main setting for the human characters in the novel until section seven when they return to Kern’s world. It is over 2,000 years old and made from a mixture of old empire technology and whatever the surviving humans were able to create on their own. Its cargo are humans kept in cryo sleep, allowing them to travel thousands of years without aging unless they are removed from stasis as shown with Holsten, Lain and Guyen. The Gilgamesh’s mission is to establish humanity on another world after earth becomes uninhabitable. Once the spiders and humans decide to coexist, a successor to the Gilgamesh, called the Voyager, is created based on the idea of the Gilgamesh, but with more advanced parts.