The Call of Earth
Orson Scott Card
 The book focuses on several key events that happen after Nafai, Elemak, Issib, Mebbekew, Zdorab and the father Volemak leave for the desert. Elemak has a dream from the Oversoul, foretelling Volemak's sons going back to the city of Basilica to get wives. The sons proceed to Nafai's and Issib's mother, Rasa, who is attempting to keep order within the city. However Hushidh, a raveler under Rasa's care, makes the disastrous mistake of severing the ties between Rashgallivak and his men, leading to widespread riots across the city. At the same time, General Moozh, leader of the "Wetheads" nation (Gorayni), is attempting to conquer cities around Basilica. He sees a strategic chance, and taking only 1000 soldiers, marches across the desert to conquer the city. He arrives in time to help the local city guard quell the uprising, and slowly begins taking control of its affairs. The remainder of the book deals with Nafai and his brothers' (Elemak and Mebbekew, who had come) attempts at finding wives. In the end, they are all forced into a house arrest along with Rasa, where Elemak takes Eiadh as his wife, Mebbekew takes Dol, Nafai takes Luet, the waterseer, with Rasa and Hushidh deciding to come as wives for Volemak and Issib, respectively. Shedemei (a Basilican geneticist) is dragged along with enough plants and animals to populate the future earth with new species, also as a wife to Zdorab. The ending comes when Moozh decides to marry Hushidh to politically tie himself with the city. Hushidh's original mother arrives to stop the ceremony, since Hushidh is actually the daughter of Moozh. Nafai's party is escorted out of the city with the women and supplies for the camp. Moozh ends up conquering the "Wetheads" he had been working for, while his Basilican second-in-command defends the city against the rival nation, Potokgavan. In the end he is killed during an invasion and Basilica falls, scattering the citizens to various other nations and cities on Harmony. Earlier in the book, the Oversoul had revealed the purpose of this dispersal was to force people with a strong connection to it to breed with people who had a weak connection, and so delay the eventual time when the Oversoul loses control of the people of Harmony.