In Pliocene Europe, warring races of aliens and humans face a new threat from North America in the third novel of the Locus Award–winning sci-fi series. A gro

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 H

In the final novel of the award-winning sci-fi saga, both humans and aliens face destruction as a new time-portal opens a path back to the twenty-second century

In the year 2034, Theo Quderian, a French physicist, made an amusing but impractical discovery: the means to use a one-way, fixed-focus time warp that opened in

“Fascinating . . . May has cemented her position as one of this generation's foremost storytellers. . . .This satisfying end to a remarkable feat of the imagi