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Macmillan Childrens Publishing Group
Probability Space

Probability Space

The Probability Trilogy (Volume 3)

Nancy Kress

Tor Books



Nancy Kress cemented her reputation in SF with the publication of her multiple-award–winning novella, "Beggars in Spain," which became the basis for her extremely successful Beggars Trilogy (comprising Beggars in Spain, Beggars and Choosers, and Beggars Ride).

And now she brings us Probability Space, the conclusion of the trilogy that began with Probability Moon and then Probability Sun, which is centered on the same world as Kress's Nebula Award-winning novelette, "Flowers of Aulit Prison." The Probability Trilogy has already been widely recognized as the next great work by this important SF writer.

In Probability Space, humanity's war with the alien Fallers continues, and it is a war we are losing. Our implacable foes ignore all attempts at communication, and they take no prisoners. Our only hope lies with an unlikely coalition: Major Lyle Kaufman, retired warrior; Marbet Grant, the Sensitive who's involved with Kaufman; Amanda, a very confused fourteen-year-old girl; and Magdalena, one of the biggest power brokers in all of human space.

As the action moves from Earth to Mars to the farthest reaches of known space, with civil unrest back home and alien war in deep space, four humans--armed with little more than an unproven theory--try to enter the Fallers' home star system. It's a desperate gamble, and the fate of the entire universe may hang in the balance.

At the Publisher's request, this title is being sold without Digital Rights Management Software (DRM) applied.

John W. Campbell Memorial Award - Winner



Three months earlier

Sometimes it seemed to Amanda Capelo that she had the best life of any of her friends at Sauler Academy....

Praise for Probability Space

“Kress's Sleepless trilogy proved that she was a serious writer, worthy of considered attention. Probability Moon only emphasizes that.” —Locus

“This book has something for everyone.” —VOYA on Probability Moon

“Kress has blended such a nice set of surprises and inevitabilities that you should learn and read and enjoy them for yourself. You don't have to read Probability Moon to have a good time, but you'll probably search it out anyway.” —San Diego Union-Tribune on Probability Sun

“Displaying a typically strong synthesis of Kress' many gifts, the novel leaves the door wide open for at least one successor.” —Booklist on Probability Sun


Reviews from Goodreads

Nancy Kress

Nancy Kress is a Hugo and Nebula Award-winning author of more than twenty books, including more than a dozen novels of science fiction and fantasy, as well as three story collections, and two books on writing. Probability Space, the final book in the Probability trilogy, won the John W. Campbell Award for Best Science Fiction novel. She has also written the Cosmic Crossfire series and the Yesterday’s Kin trilogy, as well as standalones including Maximum Light and Steal Across the Sky.

image of Nancy Kresso
Liza Trombi


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