Mistress of Molecules
by Gerald M. Weinberg
Libra has never seen a tree. On her planet, every growing thing poisons humans. Using her extraordinary powers of chemical synthesis, she terrorizes the corporations and churches that hold everyone in slavery. Across the galaxy, Andre saves a Zgaarid spaceship and is implanted with Zgaarid technology. Andre meets Libra. The reaction is explosive. The galaxy will never be the same.