In Victorian England, no woman—not even a brilliant economist like Reina Martin—is allowed to open her own bank account. Men will take care of everything, women are told. But Reina knows better. As the illegitimate daughter of a Spanish immigrant mother, she’s haunted by the memory of living with unpaid grocer’s bills and no coal for the hearth.

So together with her mentor, the powerful banker William Farlow, Reina will build the first all-women’s bank, where women can manage their own financial security.

At home, Reina’s domestic staff of recently paroled prisoners are building new lives and becoming a found family. But soon Reina is shocked to discover that her enigmatic butler, John Pembroke, is an undercover police detective. He’s been assigned to investigate Farlow, who’s suspected of financial crime on a scale so massive, it could destabilize the British economy. Pembroke needs Reina’s expertise for a high-stakes nighttime heist to obtain incriminating evidence.

Now Reina faces the agonizing choice of betraying her mentor or turning her back on thousands of working-class families who stand to lose everything. Either way, her dream of the women’s bank may be over.

But courage and sacrifice aren’t limited to the battlefield—they also occur at the kitchen table, where women who believe in compassion and community are working to remake the future. And when the stakes are highest, Reina knows to trust her heart as well as her intellect.

Based on real-life trailblazers such as Mary Paley Marshall, Britain’s first female economist, and financial titan Hetty Green, Queen of Lombard Street brings to light the hidden history of extraordinary women whose achievements should be celebrated. How can we know who we are, if we don’t know who we were?