When Lilith lyapo wakes from a centuries-long sleep, she finds herself aboard the vast spaceship of the Oankali. She discovers that the Oankali—a seemingly benevolent alien race—intervened in the fate of the humanity hundreds of years ago, saving everyone who survived a nuclear war from a dying, ruined Earth and then putting them into a deep sleep. After learning all they could about Earth and its beings, the Oankali healed the planet, cured cancer, increased human strength, and they now want Lilith to lead her people back to Earth—but salvation comes at a price.

God is change. That is the central truth of the Earthseed movement, whose unlikely prophet is 18-year-old Lauren Olamina. The young woman's diary entries tell the story of her life amid a violent 21st-century hell of walled neighborhoods and drug-crazed pyromaniacs - and reveal her evolving Earthseed philosophy. Against a backdrop of horror emerges a message of hope: if we are willing to embrace divine change, we will survive to fulfill our destiny among the stars.

Having just celebrated her 26th birthday in 1976 California, Dana, an African-American woman, is suddenly and inexplicably wrenched through time into antebellum Maryland. After saving a drowning White boy there, she finds herself staring into the barrel of a shotgun and is transported back to the present just in time to save her life. During numerous such time-defying episodes with the same young man, she realizes she's been given a challenge.

In the tradition of Octavia Butler, here is radical self-help, society-help, and planet-help to shape the futures we want. Change is constant. The world, our bodies, and our minds are in a constant state of flux. They are a stream of ever-mutating, emergent patterns. Rather than steel ourselves against such change, Emergent Strategy teaches us to map and assess the swirling structures and to read them as they happen, all the better to shape that which ultimately shapes us, personally and politically.

Whenever we envision a world without war, without prisons, without capitalism, we are producing speculative fiction. Organizers and activists envision and try to create such worlds all the time. Walidah Imarisha and adrienne maree brown have brought 20 of them together in the first anthology of short stories to explore the connections between radical speculative fiction and movements for social change.