Verdict: A short, intense, unapologetically dark sapphic mafia romance built around an obsessively possessive wife and the woman she’ll burn the world down to protect. Not a gentle read — and it doesn’t pretend to be.
Best for: Dark-romance readers who want obsession, possessive protection, married-couple-under-siege stakes, and a heroine with a “monster within.”
Goodreads ★ 4.27 | Heat 🌶️🌶️🌶️🌶️ | Tropes: obsessive love, possessive protector, married mafia couple, dark romance
Cruel Princess: A Sapphic Dark Mafia Romance by Jenna Kent is the seventh book in The BlackBurns series and one of the darkest entries on our list of sapphic mafia romance books. At barely 171 pages it moves fast and hits hard, trading slow-burn for a marriage already on fire and an enemy already at the gates.
What Is Cruel Princess About?
The story is told in dual POV between Lucia and Mia. Lucia is a mafia woman who has spent years scheming to make Mia hers, and as the book opens she finally has what she wants: they’re married, and Mia is her wife, her queen, her entire reason for living.
The happiness is short-lived. Someone is trying to take Mia away, and the newlyweds find hits already out on Mia’s life. Lucia’s answer is total: she will kill anyone who threatens what’s hers, and a war is brewing against her family that threatens to turn into an all-out bloodbath.
Mia, for her part, knew marrying Lucia would change everything — but she didn’t bargain for the chaos, or for how obsessively protective Lucia becomes, striking down anyone who so much as looks at her wrong. The tension of the book lives in that space: Mia’s love is the only thing keeping Lucia’s darkness in check, and she’s frightened of the monster she’s unleashed.
What Makes This Dark Sapphic Mafia Romance Work
- ✓ A genuinely dark, obsessive heroine — Lucia’s “monster within” is the whole draw.
- ✓ Married-couple-under-siege stakes: the wedding is the start, not the ending.
- ✓ Dual POV that lets you sit inside both the obsession and the fear it creates.
- ✓ A fast, propulsive 171 pages — no filler, straight into the war.
- ✓ Established BlackBurns world for readers who love an interconnected mafia universe.
Tropes & Themes at a Glance
| Element | What to Expect |
|---|---|
| Central trope | Obsessive love & possessive protector |
| Relationship stage | Newly married — already under attack |
| Leads | Lucia (the obsessive wife) & Mia (her queen) |
| Heat level | 🌶️🌶️🌶️🌶️ — spicy and intense |
| Tone | Genuinely dark — violence and obsession |
| Series | The BlackBurns, Book 7 |
| Length | ~171 pages — a fast read |
How Spicy Is Cruel Princess?
Heat rating: 🌶🌶🌶🌶 (4 / 5)
This is a spicy, intense read. The married-couple set-up means the physical relationship is front and center, and the obsessive dynamic bleeds into the heat as much as the danger. If you want passion braided with possessiveness, that’s exactly what’s on offer.
A content note: This is a genuinely dark romance and should be treated as one. It features an obsessively possessive love interest who kills people over perceived threats, on-page mafia violence and a brewing war, a heroine who is frightened of the “monster” she has unleashed in her partner, and a backstory in which Lucia fixated on Mia when Mia was a teenager (they marry as adults). If obsessive control, jealousy-driven violence, or that age-gap fixation are hard limits for you, this isn’t the right pick. If the pull of an age gap is what you love, we have a whole list of age-gap lesbian romance worth exploring.
Who Should Read This Book?
You’ll love it if…
- ✓ Obsessive, possessive dark-romance heroines are your catnip.
- ✓ You want a married mafia couple fighting to survive rather than a courtship.
- ✓ You like short, high-intensity reads you can finish in a sitting.
- ✓ You enjoy interconnected series worlds like The BlackBurns.
You might skip it if…
- ✗ Obsessive or controlling love interests are a hard no for you.
- ✗ You want a slow-burn courtship rather than an already-married couple.
- ✗ Graphic violence and a “kill anyone who threatens us” ethos aren’t for you.
Frequently Asked Questions
Do I need to read the other BlackBurns books first?
Cruel Princess is Book 7 in The BlackBurns series. It centers on Lucia and Mia’s own arc, but because it’s set in an established, interconnected world, longtime series readers will get the most from the wider family context.
How dark is Cruel Princess?
Very. This is dark romance in earnest — obsessive possession, jealousy-driven violence, a mafia war, and a love interest openly described as a “monster” kept in check only by her wife’s love. Go in expecting intensity, not comfort.
Is there an age gap or problematic backstory?
Lucia first fixated on Mia when Mia was a teenager, and the two marry as adults. It’s worth flagging for readers who are sensitive to age-gap fixation or obsessive origins — the book leans into the darkness rather than smoothing it over.
How explicit is it?
It’s spicy, around 🌶️🌶️🌶️🌶️, with the married couple’s physical relationship woven tightly into the possessive dynamic.
Is it a quick read?
Yes — at roughly 171 pages it’s a fast, high-octane one-sitting read that dives straight into the conflict. If that sharp, adversarial spark is your catnip, browse more enemies-to-lovers sapphic romance in our roundup.
If You Loved Cruel Princess, Read These Next
- A Bride for the Viper by Kat Lionne — a dark captor-captive crime-family romance.
- Broken Vows by Nadine O’Keeffe — a runaway bride hunted through warring gangs.
- Her Mafia Bride by Persephone Black — arranged-marriage enemies-to-lovers.
- Dark Lesbian Romance — 25 sapphic dark reads reviewed.
- The 25 Best Sapphic Mafia Romance Books — our full curated collection.
The Bottom Line
Cruel Princess is a compact, ferocious dark sapphic mafia romance about an obsessive wife who will unleash a bloodbath to keep her queen safe. It’s not gentle and it isn’t trying to be — but for readers who want possessive intensity and a married couple under siege, its 4.27 Goodreads average shows it delivers exactly the darkness it promises.