The Moon and the Face is the sequel to McKillip's 1984 novel, Moon-Flash, which details the journey of young Kyreol and Terje as they leave the Riverworld for the first time. Kyreol, who has just been betrothed to Korre, must decide if she should simply accept a fate decided by others. She knows she will be unhappy married to Korre, a quiet, often sullen young man who calls her stories nonsense and expects her continual obedience. She already misses the ready friendship and understanding of Terje, who has been her companion since childhood.

Shortly before her marriage ceremony, Kyreol journeys with Terje along the river. Although the two had always believed that the Riverworld encompassed the entire world, they soon discover that it is only one small part of a much larger world. As the two travel through strange new places, they learn the varied ways that...