Sadie Kincaid writes multiple separate series, often with bold themes and high-intensity relationship dynamics. The important part is simple: pick the series you want, then read that series in order.

What can trip readers up is the naming. Several series carry the “Ruthless” label, but they’re still best treated as distinct sub-series unless you’re intentionally doing a full-catalog run.
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A simple way to choose your starting point
If you want mafia romance first (most common entry):
- Start with New York Ruthless (longer arc, lots of extras) or Chicago Ruthless (short, direct series)
If you want a fantasy/paranormal arc instead:
- Start with Broken Bloodlines (its own continuity)
If you want a one-and-done sample:
- Start with The Perfect Fit (standalone)
The “don’t-get-spoiled” rules
- Within each numbered series: read in order.
- Across different series: you can switch freely, but you may miss small references if characters cameo elsewhere.
- Broken Bloodlines / Curse of Blood: treat these as separate continuity from the Ruthless mafia books.
Publication order by series
New York Ruthless (Main novels – read in order)
- Ryan Rule (2021): A ruthless leader meets the one person who won’t be managed, bought, or scared away.
- Ryan Redemption (2021): A damaged bond becomes a battlefield when forgiveness starts to feel possible.
- Ryan Retribution (2022): Vengeance tightens the net until loyalty and love demand a final choice.
- Ryan Reign (2022): Power shifts as desire turns into something deeper, and more dangerous to protect.
- Ryan Renewed (2022): A relationship that should be impossible becomes the one thing worth rebuilding.
- A Ryan Recollection (2023): After the dust settles, the past resurfaces in a way no one can ignore.
New York Ruthless (Optional novellas – best read after finishing the main run)
These are bonus stories. They’re safest after the core arc because they assume you already know the cast.
- A Ryan Reckoning (2022): A sharp reminder that every choice in their world has a price tag.
- A Ryan Rewind (2022): A look back that reframes what “before” really meant for this couple.
- A Ryan Halloween (2022): A playful night that still manages to reveal real emotional stakes.
- A Ryan Christmas (2022): Holiday calm gets tested by the kind of devotion that doesn’t stay quiet.
- A Ryan New Year (2022): Fresh promises collide with old instincts that don’t disappear overnight.
- A Ryan Restraint (2022): Self-control becomes the hardest rule to follow when temptation hits close to home.
- A Ryan Revelation (2023): A truth finally lands, changing how trust works between them.
- A Ryan Recon (2023): A quick mission turns personal when boundaries blur.
- A Ryan Review (2023): A moment of reflection that shows what the relationship has actually become.
- Another Ryan Christmas (2023): Traditions return, along with the complications they were meant to hide.
- A Ryan Regret (2024): A lingering mistake comes due, and demands a real repair.
L.A. Ruthless (Read in order)
- Fierce King (2021): A power player claims control until the wrong woman proves he can’t control everything.
- Fierce Queen (2021): A woman with her own rules forces a kingpin to negotiate instead of conquer.
- Fierce Betrayal (2022): Loyalty fractures when desire lands in the one place it shouldn’t.
- Fierce Obsession (2022): A “perfect” life cracks as obsession exposes what’s been buried.
London Ruthless (Read in order)
- Dark Angel (2021): A dangerous protector steps out of the shadows, and refuses to let her go back alone.
- Fallen Angel (2021): Love turns brutal when the cost of protecting her becomes personal.
- Heart of a Devil (2025): A devil’s bargain romance where attachment becomes the most lethal vulnerability.
Chicago Ruthless (Read in order)
- Dante (2023): An enemies-to-lovers collision where pride and possession escalate fast.
- Joey (2023): A hard-edged man meets a woman who challenges the rules he built his life on.
- Lorenzo (2023): A calculated alliance turns intimate, then dangerous, when feelings stop cooperating.
- Keres (2024): Vengeance drives the plot, until the person he’s drawn to becomes part of the reckoning.
Manhattan Ruthless (Read in order)
- Broken (2024): A relationship starts in shards, then becomes a test of who breaks first.
- Promise Me Forever (2025): Commitment stops being a fantasy and becomes a demand with consequences.
- Rebound (2025): What looks like a temporary fix turns into the real thing when defenses slip.
- Made (2026): A “built” life gets rewritten when the wrong attachment becomes non-negotiable.
- Played (2025): Games end when someone finally refuses to be a piece on the board.
Note: One title’s year placement is inconsistently listed across catalogs; the safest approach is to read these in the numbered order shown above.
Las Vegas Ruthless (In progress)
- King of War (2026): A war-minded kingpin meets the one person who can disrupt his strategy, and survive it.
Fantasy / paranormal continuity
Broken Bloodlines (Read in order)
0.5. Born in Blood (2024): A bridging story that sets the tone and stakes before the main arc takes off.
- Forged in Blood (2024): Power, fate, and attraction lock together as the bigger conflict reveals itself.
- Promised in Blood (2024): A promise becomes a trap when loyalty is demanded in blood, not words.
- Bound in Blood (2025): The bond tightens until “together” is the only way to survive what’s coming.
- Lucien: Darkness Reborn (2026): The darkness resurfaces, and a central figure takes the story into its next phase.
Curse of Blood (with LJ Morrow) – separate continuity (Read in order)
- Cursebound (2025): A curse-driven romance where chemistry and danger rise together.
- Unbound (2026): The curse’s grip shifts, forcing a new kind of fight to win a future.
Other series in progress
Wages of Sin (Read in order)
- The Auction (2026): A high-stakes sale becomes a personal confrontation that can’t be walked back.
- The Game (2026): The rules change, and the real prize isn’t what anyone expected.
Horsemen of The Mane (In progress)
- KingBreaker (2026): A breaker with power meets the one connection that threatens to unmake his control.
Standalones (Read anytime)
- The Perfect Fit (2023): Two people who shouldn’t match discover the “wrong choice” can be the right life.
- My First Mistake (2025): A single decision starts a chain reaction that turns attraction into fallout.
Contribution to a multi-author collection
- A Dark Desires Love Story: Volume 1 (2024): A bite-sized dark romance entry designed to sample the tone without committing to a full series.
Latest status
Most recently listed upcoming releases (as currently cataloged):
- The Auction (2026), Made (2026), Unbound (2026), KingBreaker (2026), King of War (2026), The Game (2026), Lucien: Darkness Reborn (2026).
Best starting points, restated
If you want a safe first read with the clearest path forward: Ryan Rule (New York Ruthless #1).
If you want a shorter mafia commitment: Dante (Chicago Ruthless #1).
If you want fantasy/paranormal instead: Forged in Blood (Broken Bloodlines #1), optionally preceded by Born in Blood.
Frank is the editor of BookSeries.blog, focusing on publication order, chronological timelines, and spoiler-free reading guides for book series and fictional universes.

