When Sime killed Gen, it was the normal way of things—after all, Gens weren't really people, were they? They existed only to provide Simes with life-giving selyn. And then Risa Tigue, a Sime, injured and needing selyn, stumbles on the trail of a gen named Sergi ambrov Keon. Sergi is a Companion, a Gen who can control the transfer of Selyn without harming either Sime or Gen. In Risa, Sergi sees the potential for that rarest of beings, a Channel. But can Risa survive the transformation—and even if she can, can Simes and Gens learn to live together peacefully? This is the legendary romance of Risa and Sergi. Sime~Gen, Book Seven.

Tonyo Logan and Zhag Paget are the stuff of legends. Their music is the soundtrack of the turbulent period after the signing of the Unity Treaty, which mandates that Simes and Gens learn how to get along—together! These three tales span the first first 15 years of the duo's partnership, from their beginnings as struggling musicians to their heyday as superstars, a supreme example of the creativity that happens when Sime and Gen work together. The only question is: will their world survive long enough for the pair to work their musical magic?

In the distant future, mankind has mutated into Sime and Gen. Jonmair is a Gen, and Baird is Sime, and when Baird rescues Jonmair from the Last Kill, she suddenly has a life to live—and someone with whom to share. But can Baird, one of the wealthiest men in Norlea, also be the life partner that Jonmair longs for? Can love indeed conquer all? Or will death finally triumph over love? An original Sime~Gen novel, Number Eleven in the series, and never before published.

The Idic Epidemic I.D.I.C -- Infinite Diversity in Infinite Combination. More than just a simple credo, for those of the planet Vulcan it is the cornerstone of their philosophy. Now, on the Vulcan Science Colony Nisus, that credo of tolerance is being put to its sternest test. For here, on a planet where Vulcan, human, Klingon, and countless other races live and work side by side, a deadly plague has sprung up. A plague whose origins are somehow rooted in the concept of I.D.I.C. itself. A plague that threatens to tear down that centuries-old maxim and replace it with an even older concept. Interstellar War