The sixth book in Lisanne Norman's Sholan Alliance long-running science fiction series of alien contact and interspecies conflict

The Primes are the upper class of the original Valtegan home world, pacifistic intellectuals who are unable to defend themselves from either their own warrior class—the Valtegans who have been making war on the entire galaxy—or any other species. To protect themselves, the Primes have made secret alliances with other races while concealing their own true identities and the location of their home world.
 
Now, after an ill-advised, accidental kidnapping of the vessel carrying Kusac, Carrie, and Kaid, the Primes have been forced to reveal themselves to the members of the Sholan Alliance. But in the midst of delicate diplomatic negotiations to create a new pact between the Sholan Alliance and the Primes, power struggles on both Shola and the Prime world threaten to jeopardize the treaty.
 
Still recovering from being tortured by a rogue Prime group, Kusac is about to set out on a secret mission of his own, a mission which could see him branded as a traitor to his own kind. And what he discovers could well lead to the overthrow of the Prime leadership and to the destruction of the delicate balance that is the only thing staving off interstellar war.... Praise for the Sholan Alliance series:

"Series fans will have a field day (or two) reading this delightful, but complex tale with multiple subplots." —Midwest Book Review

“Dark Nadir is full of fast-paced adventure and has more alien species that the Star Wars cantina! Fans of Lisanne Norman’s Sholan Alliance series will love this newest installment. Science fiction catnip.” —B&N Explorations

"Norman expands the exciting concepts of her first book into an extraordinary look into an alien culture, developing a rich variety of subplots that will leave you desperate to find out what happens next." —Romantic Times Magazine

“Norman is a masterful storyteller, and this is a gripping story.” —Kliatt

"Lisanne Norman handles her material superbly—knowing just when to ease up on drama and go for humor." —Starlog Magazine

"This is a big, sprawling, convoluted novel sure to appeal to fans of C.J. Cherryh and others who have made space adventure their territory." —SF Chronicle