In this science fiction novel, every human who has ever lived is resurrected along the banks of an enigmatic river on an unknown planet. The protagonist, a 19th-century explorer, awakens in this afterlife and quickly discovers that he is not alone. Surrounded by historical figures and ordinary people from all eras and cultures, he must navigate a new existence where basic needs are met but the greater mysteries of this world—such as who is responsible for the resurrection and the purpose of this second life—remain unsolved. As he forms alliances and seeks answers, he also contends with the darker aspects of human nature that persist in this strange hereafter.

The 5890th greatest book of all time