Mitza Maric has always been a little different from other girls. Most 20-year-olds are wives by now, not studying physics at an elite Zurich university with only male students trying to outdo her clever calculations. But Mitza is smart enough to know that, for her, math is an easier path than marriage. And then fellow student Albert Einstein takes an interest in her, and the world turns sideways. Theirs becomes a partnership of the mind and of the heart, but there might not be room for more than one genius in a marriage.

Clara Kelley is not who they think she is. She's not the experienced Irish maid who was hired to work in one of Pittsburgh's grandest households. She's a poor farmer's daughter with nowhere to go and nothing in her pockets. But the other woman with the same name has vanished, and pretending to be her just might get Clara some money to send back home.

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.

London, 1940. Britain is gripped by the terror of the Blitz, forcing Nell Spelman to flee the capital with her young daughter - leaving behind her husband, Arthur, the clockmaker who keeps Big Ben chiming. When Arthur disappears, Nell is desperate to find him. But her search will lead her into far darker places than she ever imagined.

Her beauty almost certainly saved her from the rising Nazi party and led to marriage with an Austrian arms dealer. Underestimated in everything else, she overheard the Third Reich's plans while at her husband's side, understanding more than anyone would guess. She devised a plan to flee in disguise from their castle, and the whirlwind escape landed her in Hollywood. She became Hedy Lamarr, screen star.