This prequel to the Trade Pact Universe series begins in a time before the Clan had learned how to manipulate the M'hir to travel between worlds. Aliens have begun to explore the world of Cersi, upsetting the delicate balance between the Clan and the two other powerful races who coexist by set rules. And one young woman is on the verge of finding the forbidden secret of the M'hir - a discovery that could prove the salvation or ruin of her entire species.

When the terraforming crews introduced the alien Quill to worlds where they did not belong, they saw them only as a mindless form of fungal life. But the Quill multiplied and mutated until they were no longer harmless. In the ensuing chaos, many stations failed. For the survivors, their only hope rests in finding a way to wipe out the Quill....

Herself a biologist, Julie E. Czerneda has earned a reputation in science fiction circles for her ability to create beautifully crafted, imaginative, yet believably realized alien races. In Survival, the first novel in her new series, Species Imperative, she draws upon this talent to build races, characters, and a universe which will draw listeners into a magnificent tale of interstellar intrigue, as an Earth scientist is caught up in a terrifying interspecies conflict.

This debut science fiction novel is the story of Sira--a woman on the run from the law, from her own people, and from an unknown figure determined to use her for his own ends. Her memory taken from her by a stasis block, she must stay free long enough to regain both her identity and the full use of her telepathic powers. The price of failure may not only be the loss of her own future, but that of her entire race.

Esen's back! And the dear little blob is in trouble, again. Things began so well. She and her human friend Paul Ragem are ready to celebrate the first anniversary of their greatest accomplishment, the All Species' Library of Linguistics and Culture, by welcoming his family back. He hopes. Having mourned his supposed death years ago, understandably, feelings are bent. Instead, they’ve unexpected guests, starting with an old acquaintance.