20 books in series
Underworld Kings
Underworld Kings is a 8-book series with 20 primary works first released in 2021 with contributions by Mila Crawford, Jenika Snow, Michelle Heard, Ker Dukey, Carrie Ann Ryan, Jane Henry, Sophie Lark, Trisha Wolfe, Clarissa Wild, Bella Di Corte, Dani René, Aleatha Romig, Alexandria Bishop, Anne Malcom, Maria Luis, Ellie Isaacson, Cora Kenborn, Catherine Wiltcher, L.P. Lovell, W. Winters, and A. Zavarelli.
| #1 |  Razor's Edge
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| #2 |  Coldhearted Bastard
| 4 | 1 read | ||
| #2 |  Cold Hearted Bastard
| 3.5 | 1 read | ||
| #3 |  Tears of Salvation
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| #4 |  Kings of Blood and Money
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| #6 |  Inked Kingdom
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| #7 |  The Bratva's Heir
| 0 | 1 read | ||
| #8 |  Marriage & Malice
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| #9 |  The Wedding Debt
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| #10 |  Disavow
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| #13 |  Twisted Obsession
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| #15 |  Kingdom Come
| 0 | 1 read | ||
| #16 |  Twisted Bargain
| 0 | 0 reads | ||
| #18 |  A Thousand Cuts
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| #19 |  Made In Ruin
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| #20 |  The Fixer
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| #21 |  City of Thieves
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| #22 |  A Vow of Lust and Fury
| 0 | 1 read | ||
| #23 |  Sexy as Sin
| 4 | 1 read | ||
| #25 |  Reckless Heir
| 3.5 | 4 reads | ||
 Kingdom Fall Kingdom Fall
| 4 | 2 reads |