She didn’t steal. She simply took what was rightfully hers—including his heart.

Charles, Duke of Hasterton, admired and respected for his cunning business acumen both at home and abroad has an astounding secret. He is imaginary. But his brilliant twin sister Cecilia is quite real. She was born in Germany after her father died and taught to guard the title, wealth, and power like the rare stolen treasure that it is. After all, as a daughter, she could never inherit the dukedom legally.

Cecilia and her mother cultivate the ruse of the fictional duke quite nicely. Everybody who is anybody in London believes His Grace resides with them at their stunning residence in Germany. Their acquaintances in Germany believe the pretend peer is always in London or traveling the world over. But when Cecilia’s mother falls victim to a grave illness and begs to visit her beloved London one last time, even though it’s risky, Cecilia can’t refuse her. But her mother can’t travel alone, and Cecilia refuses to entertain superficial men pining for nothing more than her dowry. So, she poses as her mother’s companion to ensure their elaborate farce remains safe. While everyone is told Lady Cecilia remained in Germany because of frail health, Miss Celia Bening, companion to the dowager duchess, enjoys the freedom to handle whatever arises—or at least, she tries.

Lord Elias Raines might be the second son of a duke and the youngest solicitor in his law office, but he’s proven himself so capable and talented that when his mentor dies, he’s promoted to partner and assigned to the rich, influential clients cared for by the man who taught him everything he knows. Well, almost everything. His dearly departed advisor failed to mention some of the peculiarities in the Duke of Hasterton’s file. Elias’s requests for the duke to review the oddities have, so far, gone unanswered. Luckily enough, he discovers the duke’s mother is in London. While decorum demands he wait for answers from the duke, he can’t refrain from digging deeper when the dowager duchess requests he draw up her will with a suspiciously generous endowment for her companion, the lovely Miss Cecilia, an intriguing woman who drives him mad with desire.

Delightful, passionate, and at times heartbreaking, a merry chase is had by all until a lifetime of secrets explodes. Elias must make a choice—help Cecilia devise a plan to protect the world she and her mother so carefully crafted or end their illegal scheme and escort them both to the prison.

Only one can win: his profession or his heart—until a third option too terrible to imagine rears its ugly head and makes the choice for them both.