Mafia / Mob Romance
King of Clubs : A Must Read Single Dad, Motorcycle Club Romance Short Read (Outlaw Royales Book 1) (Outlaw Royales Motorcycle Club Series)
Book 1 in the Outlaw Royales (Donna Costello) series · Reading order →
SpiceDarkness
- Kindle, paperback & audiobook on Amazon
- Spice & darkness rated — content warnings listed below
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Why we recommend it
A quick, fiery MC read pairing a rough single-dad biker with a heroine who softens his lawless edges. Expect protective alpha heat, the tender pull of a man devoted to both his kid and his club, and a fast-burning romance with grit to spare. Short but spicy, it's an easy ride for readers who love outlaw heroes with hidden hearts and just enough danger to keep things interesting.
At a glance
King of Clubs is a mafia romance by Donna Costello. It rates 3/5 for spice and 3/5 for darkness, on the lighter side for mafia romance: almost none of the 931 mafia romance books we rate are lighter on either scale. Its tropes include standalone-in-series, dark protector and forced proximity. Standalone-in-series is one of the less common tropes in our catalogue. It is about as dark as Donna Costello’s other books on Readark (average darkness 2.8/5). 1 content warning is listed below, hidden until you tap.
Book details
- Published
- September 2025
King of Clubs spice level
King of Clubs is rated 3/5 for spice on Readark’s scale: open door, meaning explicit scenes written plainly, but not the engine of the book. Its darkness rating is 3/5: genuinely dark, meaning violence, coercion or captivity drive the plot, not just the mood. How we rate
King of Clubs content warnings
We list 1 content warning for this book. It stays hidden until you tap, so you can check without spoilers.
Content warnings (tap to reveal)
- Graphic Violence
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