Romantic suspense with a secret society

These 9 books by Lori Matthews turn on a secret society with its own rules. The list follows Lori’s own sorting of her books, the one behind the “Where do I start?” picker on the home page. Each title leads to its page, with the blurb, its place in the series and where to buy it.

Lock & Key

Locked Away, book 1: She infiltrated the Society to save her brother. Its most trusted enforcer suspects her of murder.
Locked In, book 2: A supposedly haunted manor. A murdered girl. A secret someone will kill to keep locked away.
Locked Out, book 3: She came to Venice searching for her birth family. The Society wants the one clue that could reveal the truth.
Locked Down, book 4: She asked the Society to protect her uncle. The operative they sent has orders to expose him.
Unlocked, book 5: He protects secrets. She exposes them. Together, they are a problem no one survives.
Locked and Loaded, book 6: He was sent to discover what she knew. He became the only man standing between her and the people determined to kill her.

A.X. Ballantyne: The Emerald Dagger Mafia

Depths of Hunger, book 1: I thought marrying into the most powerful mafia family in the world would save my family. I never expected to uncover my husband's secret, one that could damn us both.
Depths of Obsession, book 2: I thought vampires were a myth. I couldn't have been more wrong.
Depths of Desire, book 3: Trusting the wrong person could cost me everything.

More ways to choose

What kind of hero are you craving? Private security & ex-military · Coast Guard heroes · Small-town men with big hearts

Every way to pick a book · Reading order for every series · Romantic suspense, the way Lori writes it