Kiara and her brother, Marcus, are barely scraping by in a squalid East Oakland apartment complex optimistically called the Regal-Hi. Both have dropped out of high school, their family fractured by death and prison. But while Marcus clings to his dream of rap stardom, Kiara hunts for work to pay their rent—which has more than doubled—and to keep the nine-year-old boy next door, abandoned by his mother, safe and fed.

Nisha Cantor lives the globetrotting life of the seriously wealthy, until her husband announces a divorce and cuts her off. Nisha is determined to hang onto her glamorous life. But in the meantime, she must scramble to cope--she doesn’t even have the shoes she was, until a moment ago, standing in. That’s because Sam Kemp—in the bleakest point of her life—has accidentally taken Nisha’s gym bag. But Sam hardly has time to worry about a lost gym bag—she’s struggling to keep herself and her family afloat.

Cassandra Penelope Dankworth is a creature of habit. She likes what she likes (museums, jumpsuits, her boyfriend, Will) and strongly dislikes what she doesn't (mess, change, her boss drinking out of her mug). Her life runs in a pleasing, predictable order…until now. Then, something truly unexpected happens: Cassie discovers she can go back and change the past. One small rewind at a time, Cassie attempts to fix the life she accidentally obliterated, but soon she'll discover she's trying to fix all the wrong things.

Montgomery, Alabama, 1973. Fresh out of nursing school, Civil Townsend intends to make a difference, especially in her African American community. At the Montgomery Family Planning Clinic, she hopes to help women shape their destinies, to make their own choices for their lives and bodies.

Talia is being held at a correctional facility for adolescent girls in the forested mountains of Colombia after committing an impulsive act of violence that may or may not have been warranted. She urgently needs to get out and get back home to Bogotá, where her father and a plane ticket to the United States are waiting for her. If she misses her flight, she might also miss her chance to finally be reunited with her family.

In her twenties, Belle da Costa Greene is hired by J. P. Morgan to curate a collection of rare manuscripts, books, and artwork for his newly built Pierpont Morgan Library. Belle becomes a fixture in New York City society and one of the most powerful people in the art and book world, known for her impeccable taste and shrewd negotiating for critical works as she helps create a world-class collection.

A producer at the BBC and mother to a new baby, Tessa is at work in Belfast one day when the news of another raid comes on the air. The IRA may have gone underground in the two decades since the Good Friday Agreement, but they never really went away, and lately bomb threats, security checkpoints, and helicopters floating ominously over the city have become features of everyday life. As the news reporter requests the public's help in locating those responsible for the robbery, security footage reveals Tessa's sister, Marian, pulling a black ski mask over her face.

Esme is born into a world of words. Motherless and irrepressibly curious, she spends her childhood in the Scriptorium, an Oxford garden shed in which her father and a team of dedicated lexicographers are collecting words for the very first Oxford English Dictionary. Young Esme’s place is beneath the sorting table, unseen and unheard. One day a slip of paper containing the word bondmaid flutters beneath the table. She rescues the slip and, learning that the word means “slave girl,” begins to collect other words discarded or neglected by the dictionary men.

On a November day in 1940, Adam Paskow becomes a prisoner in the Warsaw Ghetto, where the Jews of the city are cut off from their former lives and held captive by Nazi guards to await an uncertain fate. Weeks later, he is approached by a mysterious figure with a surprising request: Would he join a secret group of archivists working to preserve the truth of what is happening inside these walls? Adam agrees and begins taking testimonies from his students, friends, and neighbors.

In this “rich, complex family saga” (USA Today) full of long-buried family secrets, Marilyn Connolly and David Sorenson fall in love in the 1970s, blithely ignorant of all that awaits them. By 2016, they have four radically different daughters, each in a state of unrest.