After a recurrence of the cataclysm that killed off the dinosaurs and a resulting Long Winter of 700,000 years, the eventual New Springtime sees only two of the far future Earth’s original Six Peoples emerge from their deep cocoons: the resilient, insect-like hjjk-folk and the simian tribes who regard themselves as heirs to humanity. Young Hresh-full-of-questions is a member of one of the latter, a small band that must radically change its ancient rituals and taboos to adapt to their new life. Taking up temporary residence in the shell of a once great city, the group fearfully meets another people, is itself torn in half by rivalry and, through Hresh, achieves a new realization of who they are. This solid, dramatic novel expands on a favorite motif of Silverberg’s: the mixed terrors and pleasures of freedom, of going out into the wider world without guide, map or a sure sense of one’s own capabilities