Second in the series that portrays “one of the best-thought-out futures ever encountered in science fiction” from the author of The Many-Colored Land (Joe Haldeman).

Six million years in the past, a proto-Europe is inhabited by two extraterrestrial races, the chivalric Tanu and the dwarfish, forest-dwelling Firvulag—both of which possess far-reaching psychic powers. But now, time-traveling humans from a future