Yetu holds the memories for her people - water-dwelling descendants of pregnant African slave women thrown overboard by slave owners - who live idyllic lives in the deep. Their past, too traumatic to be remembered regularly, is forgotten by everyone, save one - the historian. This demanding role has been bestowed on Yetu. Yetu remembers for everyone, and the memories, painful and wonderful, traumatic and terrible and miraculous, are destroying her. And so, she flees to the surface, escaping the memories, the expectations, and the responsibilities.

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.

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.

An alien armada lurks on the edges of Teixcalaanli space. No one can communicate with it, no one can destroy it, and Fleet Captain Nine Hibiscus is running out of options. In a desperate attempt at diplomacy with the mysterious invaders, the fleet captain has sent for a diplomatic envoy. Now Mahit Dzmare and Three Seagrass - still reeling from the recent upheaval in the Empire - face the impossible task of trying to communicate with a hostile entity.

The year is 2172. Climate change and nuclear disasters have rendered much of earth unlivable. Only the lucky ones have escaped to space colonies in the sky. In a war-torn Nigeria, battles are fought using flying, deadly mechs, and soldiers are outfitted with bionic limbs and artificial organs meant to protect them from the harsh, radiation-heavy climate. Across the nation, as the years-long civil war wages on, survival becomes the only way of life. Two sisters, Onyii and Ify, dream of more.