

A Necessary Sin
A Necessary Sin is a gripping dark romance from New York Times, USA Today, and Wall Street Journal bestselling author Georgia Cates.
Revenge. It’s what drives me. What I live for. What I was born into.
As the heir to one of Scotland’s most powerful crime families, I’ve spent my life preparing to take down the man who destroyed everything I loved. My plan is perfect—until she comes along.
Bleu MacAllister is a challenge I didn’t see coming. She’s beautiful, strong, and hiding her own dangerous secrets. She’s everything I didn’t know I needed, and now she’s become my greatest weakness. Falling for her wasn’t part of the plan.
Our attraction is undeniable, our connection lethal. But as I get closer to her, I realize that her truths might be more dangerous than mine.
How far will I go to exact my revenge when the woman I love stands in my way?
A Necessary Sin is a dark, passionate story of love, betrayal, and redemption. It’s the first book in the Sin Trilogy, a series filled with intense twists, steamy romance, and heart-stopping suspense.
The Sin Series by Georgia Cates—A Mafia Romance of Secrets, Passion, and Redemption
A Necessary Sin is available on all major platforms:
What Readers Are Saying—
A Love That Was Forbidden from the Start
A Necessary Sin is a bold, unforgettable romance that pushes boundaries and tests loyalties. Georgia Cates delivers a dark, passionate story of forbidden love, danger, and sacrifice that grips readers from the first page and doesn’t let go.


★★★★★
Georgia Cates pulls you into a world of dark secrets and forbidden desire—I couldn’t put A Necessary Sin down. Sin is dangerous, magnetic, and completely unforgettable.
Hailey Monroe
Omaha, Nebraska


★★★★★
This series is everything—intense, seductive, and impossible to walk away from. A Necessary Sin is just the beginning of a breathtaking journey that left me breathless all the way through The Next Sin and One Last Sin.
Madison Pierce
Peoria, Illinois
Frequently asked questions
Is The Sin Series a standalone or a trilogy?
The core of The Sin Series is a trilogy—A Necessary Sin, The Next Sin, and One Last Sin—that tells one unforgettable love story. But the series expands beyond the trilogy with three standalone novels: Endurance, Unintended, and Redemption. Each of these can be enjoyed on their own or as deeper dives into the world readers have come to love.
What genre is The Sin Series?
The Sin Series is a mafia romance that blends high-stakes danger, raw passion, and emotional intensity. Expect power, betrayal, loyalty, and love that dares to defy all odds.
What order should I read The Sin Series in?
Start with the trilogy in this order:
2. The Next Sin
3. One Last Sin
Then dive into the standalones: Endurance, Unintended, and Redemption. These can be read in any order and feature fresh stories set in the same world.

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Their Story Isn’t Over Yet…
The first book lit the spark—now the flame burns hotter. Dive deeper into a sweeping romance of passion, betrayal, and second chances. This isn’t just a continuation…it’s a love story that refuses to end.
The Next Sin
When the one you love becomes your greatest risk… In The Next Sin, passion deepens and the stakes rise. As secrets unravel and trust is tested, love collides with danger. Their connection is undeniable, but can it survive the storm—or will it become the very thing that tears them apart?


The Next Sin is available on all major platforms:
One Last Sin
How do you walk away when love is the only thing holding you together? In One Last Sin, loyalty is tested and sacrifices are made as they face the consequences of every secret and betrayal. When trust is fragile and the future uncertain, will their love be strong enough to survive the final reckoning?


One Last Sin is available on all major platforms:


Endurance
When love endures the unimaginable… Endurance is a powerful standalone in the Sin Series that delves into healing, trust, and the fight to rebuild after heartbreak. As past wounds threaten to reopen and emotions run deep, can they find the strength to hold on—or will their second chance slip away again?
Endurance is available on all major platforms:


Unintended
When love finds you where you least expect it… Unintended is a heart-tugging standalone in the Sin Series that explores the beauty of unexpected love, redemption, and healing. When a guarded heart collides with an unshakable connection, can two broken souls rewrite their story into something lasting—something that was never part of the plan?
Unintended is available on all major platforms:


Redemption
When love becomes your salvation… Redemption is an emotional standalone in the Sin Series about reclaiming love after betrayal. As truths surface and past wounds demand healing, two hearts are put to the ultimate test. Can they forgive, trust, and find their way back to the kind of love that saves them both?
Redemption is available on all major platforms: