Holt Sisters Trilogy Books in Order

The Holt Sisters Trilogy is a connected trio of Regency romances with a strong suspense thread, built around three women who discover they are sisters only after their lives have already gone in wildly different directions. Their father, a government official entangled in dangerous work, was murdered years earlier, and the cover up scattered his daughters across class lines and countries.

In Beauty and the Spy, London belle Susannah Makepeace thinks she knows who she is. She enjoys gowns, parties, and a respectable fiancé, even if a quiet restlessness nags at her. When the man who raised her is killed and she is left penniless, she is sent to live with a relative in the rural village of Barnstable. There she quite literally stumbles upon Christopher "Kit" Whitelaw, Viscount and secretly one of His Majesty’s spies, while he is swimming. Kit has been banished from London and assigned a tedious wildlife survey that masks a more serious investigation into the same death that upended Susannah’s life. As “accidents” begin to circle her, the two join forces to untangle the mystery and fall inconveniently in love.

Ways to Be Wicked shifts the focus to Sylvie Lamoureux, a celebrated Parisian ballerina and a powerful man’s mistress. When she intercepts a letter that hints at a family she never knew, Sylvie bolts from the gilded confines of her life and heads to England in search of answers. On the journey she crosses paths with Tom Shaughnessy, an irreverent theater owner with troubles of his own. Their partnership, born from necessity and temptation, pulls Sylvie onto the English stage and further into the web of secrets surrounding the Holt family.

The trilogy concludes with The Secret to Seduction, featuring Sabrina Fairleigh, a vicar’s daughter who prides herself on good sense and useful piety. Invited to a country house party, she plans to secure a safe, suitable husband. Instead she discovers that her host is Rhys Gillray, Earl of Rawden, infamous as "The Libertine" whose scandalous poetry has shocked England. Rhys initially sees Sabrina as a diversion from boredom and a test of his seductive skill, but their battle of wills exposes deeper wounds on both sides. Buried in Rhys’s past is a key to the crime that shattered Sabrina’s birth family, and solving it will require both of them to risk their hearts as well as their safety.

Across all three books, Long threads clues about political corruption, betrayal, and the night the sisters were separated, so that each romance advances a larger investigation. The Holt women are very different in temperament and circumstance, but they share resilience, fierce intelligence, and a refusal to stay within the boundaries the world draws for them.

The trilogy offers a slightly darker, more suspenseful flavor than some of Long’s other historicals while still delivering her signature wit and chemistry. It is a rewarding choice if you enjoy romance series where family secrets matter as much as courtship and where justice, not just love, is on the line.