Eloisa James' When the Duke Returns, the fourth installment in the Desperate Duchesses series, is a delightful exploration of love, identity, and societal expectations set against the backdrop of Regency England. This novel is a testament to James' ability to weave a compelling narrative filled with humor, romance, and a touch of drama, making it a must-read for fans of historical romance.

The story revolves around Lady Isidore, the Duchess of Cosway, who has been married by proxy since childhood to a man she has never met. Her husband, Simeon Jermyn, the Duke of Cosway, has been absent, indulging in adventures across the globe. Isidore, having spent years fending off unwanted advances in European courts, is determined to finally meet her husband and embrace her role as his duchess. However, her dreams are shattered when Simeon returns to London and demands an annulment.

One of the most compelling aspects of this novel is the character development of both Isidore and Simeon. Isidore is portrayed as a strong, independent woman who is not afraid to fight for what she wants. Her determination to win Simeon's heart, despite his initial rejection, is both admirable and relatable. James crafts Isidore as a character who defies the typical expectations of a docile duchess, instead presenting her as a vibrant and headstrong individual. Her journey from a woman waiting for her husband to one who actively pursues her desires is both empowering and engaging.

Simeon, on the other hand, is a character torn between his adventurous past and the responsibilities of his title. His initial desire for an annulment stems from his preconceived notions of what a duchess should be—docile and compliant. However, as the story progresses, Simeon is forced to confront his own biases and expectations. His character arc is a fascinating exploration of personal growth and acceptance, as he learns to appreciate Isidore's strength and individuality. James skillfully portrays Simeon's internal struggle, making his eventual transformation both believable and satisfying.

The chemistry between Isidore and Simeon is palpable from their first meeting. James excels at creating tension and attraction between her protagonists, and When the Duke Returns is no exception. The dynamic between the two is a delightful mix of wit, passion, and vulnerability. Their interactions are filled with sharp dialogue and emotional depth, making their relationship both entertaining and heartfelt. The evolution of their romance—from initial resistance to eventual acceptance—is beautifully rendered, showcasing James' talent for crafting nuanced and engaging love stories.

Beyond the central romance, When the Duke Returns also delves into themes of societal expectations and personal identity. Isidore's struggle to assert her independence in a society that values conformity is a recurring theme throughout the novel. Her determination to maintain her sense of self, even in the face of societal pressure, is a powerful message about the importance of staying true to oneself. Similarly, Simeon's journey towards embracing his responsibilities as a duke while remaining true to his adventurous spirit highlights the tension between personal desires and societal obligations.

James' writing is both elegant and accessible, with a keen eye for historical detail that brings the Regency era to life. Her ability to balance humor and drama ensures that the story remains engaging from start to finish. The secondary characters, including the eccentric members of the Desperate Duchesses series, add depth and richness to the narrative, providing both comic relief and additional layers to the story.

In comparison to other historical romance novels, When the Duke Returns stands out for its strong character development and exploration of complex themes. While authors like Julia Quinn and Lisa Kleypas also excel in crafting engaging romances set in the Regency period, James' focus on personal growth and societal expectations adds a unique dimension to her storytelling. Her characters are not only defined by their romantic entanglements but also by their individual journeys towards self-discovery and acceptance.

Overall, When the Duke Returns is a captivating addition to the Desperate Duchesses series, offering a perfect blend of romance, humor, and drama. Eloisa James' skillful storytelling and rich character development make this novel a standout in the historical romance genre. Whether you're a longtime fan of the series or a newcomer to James' work, this book is sure to delight and entertain, leaving readers eagerly anticipating the next installment.