In the 22nd Century, Jennifer Kennedy, the shy and tongue-tied counterpoint to her charismatic brother Jordi, is left stunned when Jordi drowns in a flood brought on by advanced climate change. Bereft and fearful, Jenny departs Earth to enter her freshman year at Frontera College, based in the world’s first permanent and self-sustaining space habitat.In a future when the deadly microbes that caused AIDS and anthrax have been modified to power elevators and cure disease, Jenny just wants to study and play slanball in peace. But as the endless war on the ultraphyte, an invasive alien organism, rages on, Jenny begins to notice that things aren’t quite right—not with her socially disabled roommate, nor at the college, nor in American politics. An accidental discovery reveals that “ultra” has infiltrated to shocking levels of society. Reluctant as she is to enter the spotlight, Jenny must step up to save her school, her country, and the world.

In a new addition to the famed Elysium cycle, an intelligent microbe capable of living symbiotically in other intelligent beings has begun to colonize the human race throughout the universe, and one woman struggles to adjust to possessing a colony of these microbes living permanently within her own head. Reprint.

The Sharers, a race of all women, living on the planet Shora, who reproduce by parthogenesis without males, are suddenly faced with the technological and cultural invasion of men from space. Winner of the John W. Campbell Memorial Award for Best Novel. Reprint. 10,000 first printing. (view table of contents)

The ruthless plans of Proteus Unlimited, a powerful and greedy corporation, to terraform the planet of Prokaryon threaten to destroy any native intelligence alien life as well as the lives of a colony of orphans who make Prokaryon their home

Bringing her family to the pristine technological world of Elysium in order to avert an interplanetary war, Raincloud Windclan encounters an internal corruption that threatens to destroy the immortal society. Reprint.

The Earth's interstellar government tries to force citizenship on the human coloists living on Foxfield, but is unprepared for opposition from the planet's group-minded inhabitants