A Door into Ocean is the novel upon which the author's reputation as an important SF writer principally rests. A ground-breaking work both of feminist SF and of world-building hard SF, it concerns the Sharers of Shora, a nation of women on a distant moon in the far future who are pacifists, highly advanced in biological sciences, and who reproduce by parthenogenesis--there are no males--and tells of the conflicts that erupt when a neighboring civilization decides to develop their ocean world, and send in an army.

Only children can colonize the planet Prokaryon, genetically modified for a world whose chemistry kills unaltered adults. A colony of orphans struggle to survive, and find the planet hides strange secrets. ***** The Prokaryan landscape is ordered, as if by unseen gardeners, "hidden masters" no human has ever found. The weather behaves as though designed to meet the planet's needs. When fire threatens a forest, a rainstorm appears, only to dissipate when the fire is put out. ***** When a ruthless corporation threatens to terraform Prokaryon, to recreate it for "normal" humans, there is a...

"Fascinating, flawlessly developed, meticulously detailed."-Kirkus Reviews **** "In Joan Slonczewski's Brain Plague...a starving artist on the planet Veledon agrees to let a colony of "brain enhancers" occupy her skull. These microscopic creatures live in the brain's outer linings, causing bursts of genius-or irreparable harm. The creatures themselves are like tiny human beings; one of their greatest concerns is getting their young to breed."- The New Yorker **** "Slonczewski's world building is magnificent"-Booklist