Naomi Sparks
Reading order
| # | Title | Published | Author | Buy on Amazon |
|---|---|---|---|---|
| 1 | Razor’s Edge | 2021 | Michelle Heard | Buy |
| 2 | Coldhearted Bastard | TBD | Michelle Heard | N/A |
| 3 | Cold Hearted Bastard | 2021 | Michelle Heard | Buy |
| 4 | Tears of Salvation | 2021 | Michelle Heard | Buy |
| 5 | Kings of Blood and Money | 2021 | Michelle Heard | Buy |
| 6 | Kiss of Death | 2021 | Michelle Heard | Buy |
| 7 | Inked Kingdom | 2021 | Michelle Heard | Buy |
| 8 | The Bratva’s Heir | 2021 | Michelle Heard | Buy |
| 9 | Marriage & Malice | 2021 | Michelle Heard | Buy |
| 10 | The Wedding Debt | 2021 | Michelle Heard | Buy |
| 11 | Disavow | 2021 | Michelle Heard | Buy |
| 12 | Vengeful Kingpin | 2021 | Michelle Heard | Buy |
| 13 | Kingdom Fall | 2021 | Michelle Heard | Buy |
| 14 | Twisted Obsession | 2021 | Michelle Heard | Buy |
| 15 | Kingdom Come | 2021 | Michelle Heard | Buy |
| 16 | Bad Medicine | 2021 | Michelle Heard | Buy |
| 17 | Twisted Bargain | TBD | Michelle Heard | N/A |
| 18 | Billionaire Bargain / Twisted Bargain | 2021 | Michelle Heard | Buy |
| 19 | Made In Ruin | 2021 | Michelle Heard | Buy |
| 20 | Cruel God | 2021 | Michelle Heard | Buy |
| 21 | Sexy As Sin | 2021 | Michelle Heard | Buy |
| 22 | A Thousand Cuts | 2021 | Michelle Heard | Buy |
| 23 | The Fixer | 2021 | Michelle Heard | N/A |
| 24 | City of Thieves | 2021 | Michelle Heard | Buy |
| 25 | City Of Thieves | 2021 | Michelle Heard | Buy |
| 26 | A Vow of Lust and Fury | 2021 | Michelle Heard | N/A |
| 27 | Ruthless Arrangement | 2021 | Michelle Heard | Buy |
| 28 | Sexy as Sin | 2021 | Michelle Heard | Buy |
| 29 | The Marriage Debt | 2022 | Michelle Heard | Buy |
| 30 | Reckless Heir | 2022 | Michelle Heard | Buy |
| 31 | Little Bird | 2022 | Michelle Heard | Buy |
| 32 | All the Dangerous Things | 2024 | Michelle Heard | Buy |
The Underworld Kings series is an ambitious multi-author project that builds an entire criminal underworld across 32 books. Michelle Heard contributes to this shared universe alongside other dark romance writers, each bringing their own mafia families and crime bosses while maintaining continuity with the larger story. The series explores different territories, crime families, and the alliances and rivalries that keep the underworld in constant motion.
The collaborative format allows for a breadth of storytelling that single-author series can’t match. Readers get different perspectives on the criminal empire, from street-level enforcers to the kings who control entire cities. Each author brings their own voice while adhering to the shared world rules, creating variety within the mafia romance framework. For readers who want to immerse themselves in a complete underworld with dozens of interconnected stories, Underworld Kings delivers an epic scope.