When Nora Seed finds herself in the Midnight Library, she has a chance to make things right. Up until now, her life has been full of misery and regret. She feels she has let everyone down, including herself. But things are about to change. The books in the Midnight Library enable Nora to live as if she had done things differently. 

Hidden in the depths of eighteenth-century London, a secret apothecary shop caters to an unusual kind of clientele. Women across the city whisper of a mysterious figure named Nella who sells well-disguised poisons to use against the oppressive men in their lives. But the apothecary’s fate is jeopardized when her newest patron, a precocious 12-year-old, makes a fatal mistake, sparking a string of consequences that echo through the centuries.

Texas, 1921. A time of abundance. The Great War is over, the bounty of the land is plentiful, and America is on the brink of a new and optimistic era. But for Elsa Wolcott, deemed too old to marry in a time when marriage is a woman’s only option, the future seems bleak. Until the night she meets Rafe Martinelli and decides to change the direction of her life. With her reputation in ruin, there is only one respectable choice: marriage to a man she barely knows. 

As England prepares to fight the Nazis, three very different women answer the call to mysterious country estate Bletchley Park, where the best minds in Britain train to break German military codes. Vivacious debutante Osla is the girl who has everything - beauty, wealth, and the dashing Prince Philip of Greece sending her roses - but she burns to prove herself as more than a society girl, and puts her fluent German to use as a translator of decoded enemy secrets.  

Kell is one of the last Travelers - magicians with a rare, coveted ability to travel between parallel universes. As such, he can choose where he lands. There's Grey London, dirty and boring, without any magic, ruled by a mad King George. Then there's Red London, where life and magic are revered, and the Maresh Dynasty presides over a flourishing empire. There's White London, ruled by whoever has murdered their way to the throne. And once upon a time, there was Black London...but no one speaks of that now.

Aging and reclusive Hollywood movie icon Evelyn Hugo is finally ready to tell the truth about her glamorous and scandalous life. But when she chooses unknown magazine reporter Monique Grant for the job, no one in the journalism community is more astounded than Monique herself. Why her? Why now? Monique is not exactly on top of the world. Her husband, David, has left her, and her career has stagnated.

In a sprawling mansion filled with peculiar treasures, January Scaller is a curiosity herself. As the ward of the wealthy Mr. Locke, she feels little different from the artifacts that decorate the halls: carefully maintained, largely ignored, and utterly out of place. Then she finds a strange book. A book that carries the scent of other worlds and tells a tale of secret doors, of love, adventure, and danger. Each page turn reveals impossible truths about the world, and January discovers a story increasingly entwined with her own.

Greece in the age of heroes. Patroclus, an awkward young prince, has been exiled to the kingdom of Phthia to be raised in the shadow of King Peleus and his golden son, Achilles. “The best of all the Greeks”—strong, beautiful, and the child of a goddess—Achilles is everything the shamed Patroclus is not. Yet despite their differences, the boys become steadfast companions. Their bond deepens as they grow into young men and become skilled in the arts of war and medicine—much to the displeasure and the fury of Achilles’ mother, Thetis, a cruel sea goddess with a hatred of mortals.

The Vignes twin sisters will always be identical. But after growing up together in a small, Southern Black community and running away at age 16, it's not just the shape of their daily lives that is different as adults, it's everything: Their families, their communities, their racial identities. Many years later, one sister lives with her Black daughter in the same Southern town she once tried to escape. The other secretly passes for White, and her White husband knows nothing of her past.

Before Owen Michaels disappears, he smuggles a note to his beloved wife of one year: Protect her. Despite her confusion and fear, Hannah Hall knows exactly to whom the note refers - Owen’s 16-year-old daughter, Bailey. Bailey, who lost her mother tragically as a child. Bailey, who wants absolutely nothing to do with her new stepmother.

Linus Baker is a by-the-book case worker in the Department in Charge of Magical Youth. He's tasked with determining whether six dangerous magical children are likely to bring about the end of the world. Arthur Parnassus is the master of the orphanage. He would do anything to keep the children safe, even if it means the world will burn. And his secrets will come to light. 

On an island off the coast of Ireland, guests gather to celebrate two people joining their lives together as one. The groom: handsome and charming, a rising television star. The bride: smart and ambitious, a magazine publisher. It’s a wedding for a magazine or for a celebrity: the designer dress, the remote location, the luxe party favors, the boutique whiskey. The cell phone service may be spotty and the waves may be rough, but every detail has been expertly planned and will be expertly executed.

Chosen from birth to usher in a new era, Poppy’s life has never been her own. The life of the Maiden is solitary. Never to be touched. Never to be looked upon. Never to be spoken to. Never to experience pleasure. Waiting for the day of her Ascension, she would rather be with the guards, fighting back the evil that took her family, than preparing to be found worthy by the gods. But the choice has never been hers. 

Tom Hazard has a dangerous secret. He may look like an ordinary 41-year-old, but he was born in 1581. Owing to a rare condition, he’s been alive for centuries. From Shakespeare’s England to Jazz Age Paris to voyaging the Pacific alongside Captain Cook, Tom has seen a lot, and he now craves an ordinary life. Tom now has the perfect cover - working as a history teacher at a London school. Here, he can teach the kids about wars and witch hunts as if he’d never witnessed them first-hand. He can try to tame the past that is catching up with him. The only thing Tom can’t do is fall in love.

Ryland Grace is the sole survivor on a desperate, last-chance mission - and if he fails, humanity and the Earth itself will perish. Except that right now, he doesn't know that. He can't even remember his own name, let alone the nature of his assignment or how to complete it. All he knows is that he's been asleep for a very, very long time. And he's just been awakened to find himself millions of miles from home, with nothing but two corpses for company.