By 1898, translator Judith Fenwick and confidence trickster Coralie Vardon have learned how to survive conspiracies, border crossings, false identities—and each other. But the Midnight Exchange has discovered something more profitable than stealing secrets.

It has learned how to manufacture them.

False telegrams reporting quarantine orders, shipping delays, crop failures, and industrial accidents need only be believed for a few hours. In those few hours, fortunes can be made and reputations destroyed. When Judith discovers the same linguistic fingerprints hidden inside supposedly unrelated messages, she and Coralie follow the trail from London and Paris through the Alps and into Italy, where printers, brokers, railway compartments, and telegraph offices form a machinery designed to make lies travel faster than truth.

Then a French official offers Coralie something almost irresistible: a clean slate for her old crimes in exchange for evidence against former criminal associates—including Madeleine Jarry. Coralie makes her decision without Judith, forcing the two women into the most serious conflict of their partnership.

As the conspiracy races south toward Brindisi, Judith must determine which messages are genuine while Coralie follows the money behind them. The Brindisi night mail carries the final pieces of an operation capable of manipulating markets across Europe, and their enemies need only keep their deception alive long enough to profit.

To stop them, Judith and Coralie must outthink a network that can counterfeit not merely documents, but reality itself—and decide what independence means when one woman's choices have become both women's future.

Elegant, sensual, and driven by Victorian railway and telegraph intrigue, The Brindisi Night Mail is Book 4 of The Adventuresses of the Midnight Train.