Looking for your next enemies to lovers obsession? Craving that perfect alpha hero who’ll make your heart race? The complete Hart Series is now live in Kindle Unlimited – and Boston’s most dangerous family is ready to steal your heart.Four Siblings. Four Explosive Love Stories. One Unforgettable Series.

The Hart Series delivers everything romantic suspense readers crave: gritty Boston underworld settings, romantic tropes like enemies to lovers, second chance romance, brother’s best friend romance, and more that’ll leave you breathless, and alpha heroes who fight as hard for love as they do for survival. Each standalone novel follows a Hart sibling as they navigate the dangerous legacy left by their past – and discover that sometimes the greatest risk is opening your heart.

What Makes The Hart Series Irresistible?

Enemies to Lovers tension that sizzles off the page
Second Chance Romance with emotional depth
Alpha Hero characters who protect what’s theirs
Opposites Attract dynamics that create explosive chemistry
Brother’s Best Friend Romance tropes fans can’t resist
Boston underworld setting that’s both gritty and captivating

Meet the Hart Siblings

Book 1: Hart of Darkness – Meet Dillon Hart and Maggie Marx as the former gang rivals team up to find Dillon’s baby sister. The closer they get to the truth, the higher the stakes and the harder it is to tell where the lies end and the feelings begin in this enemies to lovers romance.

Book 2: Hart of Vengeance – Meet Denim Hart and Jade Kelly as the two high school lovebirds reunite among danger, a past rife with criminals, and an enemy who wants them both dead in this second chance romantic suspense.

Book 3: Hart of Redemption – Meet Duke Hart, the oldest of the brothers and the front man for a dangerous cartel family, and Fallyn Williams, ATF Agent, who is hired to bring him down in this forbidden romantic suspense.

Book 4: Hart of Hope – Meet the baby sister of the family, Grace Hart and Brian McCauley, Duke’s best friend, as Brian’s dangerous past collides with Grace and the man who’s stalking her in this brother’s best friend, forbidden romance.

What Readers Are Saying

“An enemies to lovers romance that keeps you on the edge of your seat.”

“Pulse pounding tension that will have you turning pages.”

“The whole situation of federal agent and criminal together is rife with problems from the get-go. I was so intrigued by how their relationship could be salvaged… if it could at all. The way the author wrote their ending was terrific; it was a lot more realistic and acceptable than a fairy tale one.”

Why Kindle Unlimited Romance Readers Will Devour This Series

Romance readers know there’s nothing better than discovering a complete series you can binge-read without breaking the bank. The Hart Series offers:

Complete series available now – no waiting for the next book!Standalone novels that can be read in any order (but trust us, you’ll want them all)Interconnected storylines that reward series readersDiverse romantic suspense tropes – from enemies to lovers to brother’s best friend romanceEmotional depth that goes beyond the steamy scenes

 

Perfect For Fans Of:

Enemies to lovers romance with high stakesAlpha hero romantic suspenseSecond chance romance seriesBrother’s best friend forbidden loveOpposites attract dynamicsBoston/urban romantic suspense settingsGet Started Today

The complete Hart Series is available now in Kindle Unlimited!

Ready to fall for Boston’s most dangerous family? Start with any book – each Hart brother’s story stands alone, but together they create an unforgettable romantic suspense experience.

Series Reading Order:

Hart of Darkness: HOD Kindle UnlimitedHart of Vengeance: HOV Kindle UnlimitedHart of Redemption: HOR Kindle UnlimitedHart of Hope: HOR Kindle Unlimited

 

Or buy the complete series bundle: Hart Series Bundle

The Hart Series joined Kindle Unlimited on August 9, 2025. Each book is a standalone novel with HEA guaranteed. Contains mature themes and steamy scenes perfect for adult romance readers.

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