Clara Button is no ordinary librarian. While war ravages the city above her, Clara has risked everything she holds dear to turn the Bethnal Green tube station into the country’s only underground library. Down here, a secret community thrives with thousands of bunk beds, a nursery, a café, and a theater—offering shelter, solace, and escape from the bombs that fall upon their city. Along with her glamorous best friend and assistant Ruby Munroe, Clara ensures the library is the beating heart of life underground. As the war drags on, the women's determination is tested to the limits.

Paris, 1939: The Nazis think Éliane can't understand German. They’re wrong. They think she’s merely cataloging art in a Louvre museum and unaware they’re stealing national treasures for their private collections. They have no idea she’s carefully decoding their notes and smuggling information to the Resistance. But Éliane is playing a dangerous game. Does she dare trust the man she once loved with her secrets, or will he only betray her once again?

It’s 1938, and a young woman selling face cream out of a New York City beauty parlor is determined to prove she can have it all. Her name is Estée Lauder, and she’s about to take the world by storm, in this dazzling new novel from the USA Today bestselling author of The Social Graces and Park Avenue Summer.

1942: With the war's outcome hanging in the balance, President Roosevelt sends an unlikely new taskforce on a unique mission. They are librarians and microfilm specialists trained in espionage, working with a special branch of the Office of Strategic Services and deployed to neutral cities throughout Europe. By acquiring and scouring Axis newspapers, books, technical manuals, and periodicals, the librarians can gather information about troop location, weaponry, and military plans.

Laid off from her department store job, Carmen has perilously little cash and few options. The prospect of spending Christmas with her perfect sister Sofia, in Sofia’s perfect house with her perfect children and her perfectly ordered yuppie life, does not appeal. Frankly, Sofia doesn’t exactly want her prickly sister Carmen there, either. But Sofia has yet another baby on the way, a mother desperate to see her daughters get along, and a client who needs help revitalizing his shabby old bookshop. So Carmen moves in and takes the job.