His Broken Vows: A Cage Fighting Mafia Romance (Heirs of Philadelphia #3)
Cora J Riley
She swore vengeance. He swore protection. Together, they'll break every vow but one.
Sloane Kozlov has one mission: destroy the Bratva faction that murdered her family and forced her into hiding. As an underground cage fighter, she's spent years training her body into a weapon and her heart into stone. She doesn't need help. She doesn't want a partner. And she definitely doesn't need Killian Valentino—the dangerous, scarred enforcer who's been watching her fights with unsettling intensity.
Killian Valentino knows a warrior when he sees one. And Sloane? She's going to get herself killed charging into a war she can't win alone. When his family's interests align with her vendetta, he offers a deal: the Valentinos will back her revenge war if she lets him fight beside her. He'll be her weapon. Her shield. Her partner in blood and battle.
What he doesn't expect is to want more than just partnership.
Their alliance is pure strategy. Their attraction is pure chaos. And when Sloane's war explodes into violence that threatens everything Killian's family has built, they'll have to choose: complete the mission or protect each other.
She's broken every vow she's ever made. But the one she makes to him might be the only one that matters.
A dark mafia romance featuring: a revenge-driven cage fighter heroine, a scarred enforcer hero who's obsessed from day one, found family, brutal fight scenes, forced proximity during a war, enemies becoming lovers becoming partners, and two damaged people learning that some vows are worth keeping.

