Joan Slonczewski, author of Daughter of Elysium, and A Door into Ocean, is one of the field's leading writers of biological SF. Her new novel, The Children Star, is an ambitious adventure set on the planet Prokaryon -- a world that is only habitable to humans who have been genetically altered. But disaster is close at hand when a greedy corporation attempts to alter the planet's ecosystem in an attempt to make it habitable for all humans. Spectacular and plausible world-building fun from an SF writer to watch.