Mafia / Mob Romance
Forbidden Dark Vows: A Ruthless Billionaire Mafia Kings Standalone
SpiceDarkness
- Kindle, paperback & audiobook on Amazon
- Spice & darkness rated — content warnings listed below
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Why we recommend it
Forbidden vows bind a ruthless billionaire kingpin to a woman he should never have claimed in this standalone Mafia Kings romance. Expect the heady tension of a love that breaks every rule, a possessive hero who refuses to let her walk away, and the danger that shadows their union. A gratifying pick for fans of off-limits desire, dominant alphas, and obsession that defies all warnings.
At a glance
Forbidden Dark Vows is a mafia romance by Vivy Skys. With 4/5 for spice and 4/5 for darkness it sits mid-range for mafia romance (of the 931 mafia romance books on Readark, 32% rate lower for darkness and 24% lower for spice). Its tropes include standalone-in-series, forced marriage and alpha hero. Standalone-in-series is one of the less common tropes in our catalogue. It is about as dark as Vivy Skys’s other books on Readark (average darkness 3.6/5). 2 content warnings are listed below, hidden until you tap.
Book details
- Published
- November 2025
Forbidden Dark Vows spice level
Forbidden Dark Vows is rated 4/5 for spice on Readark’s scale: explicit and frequent, meaning multiple detailed scenes, with heat central to the story. Its darkness rating is 4/5: heavy, meaning sustained cruelty, trauma or non-consent central to the relationship. How we rate
Forbidden Dark Vows content warnings
We list 2 content warnings for this book. They stay hidden until you tap, so you can check without spoilers.
Content warnings (tap to reveal)
- Emotional Abuse / Gaslighting
- Graphic Violence
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