In 1774, Juliet Catesby lives with her father and sister at Royal Vale, the James River plantation founded by her Virginia family over a century before. Indigo cultivation is her foremost concern, though its export tethers her family to the powerful Buchanan clan of Glasgow, Scotland. When the heir of the Buchanan firm arrives on their shores, Juliet discovers that her father has secretly arranged for one of his daughters to marry the Scot as a means of canceling the family's debt. Confident it will be her younger, lovelier sister, Juliet is appalled when Leith Buchanan selects her instead.

A gripping historical mystery for fans of Kate Morton and Natasha Lester’s The Paris Seamstress, The Cartographer’s Secret follows a young woman’s quest to heal a family rift as she becomes entangled in one of Australia’s greatest historical puzzles.

Present day. As a love affair comes to an end, and with it her dreams for her future, artist Selena needs a retreat. The picture-postcard Sloe Cottage in the Somerset village of Ashcombe promises to be the perfect place to forget her problems, and Selena settles into her new home as spring arrives. 1682: Grace Cotter longs for nothing more than a husband and family of her own. Separated by three hundred years, two women are drawn together by a home bathed in blood and magic.

Australia, 1906: Orphan Jane Piper is nine years old when philanthropist siblings Michael and Elizabeth Quinn take her into their home to further her schooling. The Quinns are no strangers to hardship. Having arrived in Australia as penniless immigrants, they now care for others as lost as they once were. Despite Jane’s mysterious past, her remarkable aptitude for mathematics takes her far over the next seven years, and her relationship with Elizabeth and Michael flourishes as she plays an increasingly prominent part in their business.

When an impossibly shy young woman named Judy Morgan finishes her studies in Physics at Cambridge University, it is with dreams of changing the world for the better. Meanwhile, a beautiful, young Jewish woman decides to flee her beloved Austria, changing her name to Hedy Lamarr, and risking everything to get to America, as far away from the Nazi threat as possible.