Blessed Hearts Series by Nadine O'Keeffe, Scarlet King

Two rival gangs. A marriage meant to unite them. A single word to start a war.Siobhán Branigan has spent her whole life devoted to her family, given everything to be the perfect heir to her father’s gang. But what happens when it’s still not enough? She refuses to sign her life over to the enemy, to be used as nothing more than a pawn to unite the rival families... moreTwo rival gangs. A marriage meant to unite them. A single word to start a war.Siobhán Branigan has spent her whole life devoted to her family, given everything to be the perfect heir to her father’s gang. But what happens when it’s still not enough? She refuses to sign her life over to the enemy, to be used as nothing more than a pawn to unite the rival families. Marrying Oisín, the heir of the Cavanaugh gang, may be the answer to her father’s problems, but she’d rather sell her soul than marry a man she barely knows.And so, instead of saying I do, she runs.Nessa Tobin has given her all to crawl out of the gutter. She’s worked hard to earn her place as the enforcer for the Cavanaugh’s gang. She’s learned to be fierce. Brutal. Feared. But what happens when it’s still not enough? She refuses to put her life in the hands of her enemies, to give the girl who ruined everything the power to take her down with her.So now, she’s on the hunt.As their families teeter on the edge of war, Nessa and Siobhán must decide: where do their loyalties lie? And what happens when your enemy becomes more trustworthy than the people you've spent your life devoted to? less

Two heirs willing to do whatever it takes to help their families. A man left behind, determined not to be forgotten. A tangle of fate none of them can escape.Serafina DeSantis is brutal, bloodthirsty…and betrothed. She’s never cared for romance, and when her father asks her to marry Oisín Cavanaugh to secure both families’ futures, she doesn’t bat an eye. Her marriage is one of convenience. She never expected it to tilt her entire world on its axis... moreTwo heirs willing to do whatever it takes to help their families. A man left behind, determined not to be forgotten. A tangle of fate none of them can escape.Serafina DeSantis is brutal, bloodthirsty…and betrothed. She’s never cared for romance, and when her father asks her to marry Oisín Cavanaugh to secure both families’ futures, she doesn’t bat an eye. Her marriage is one of convenience. She never expected it to tilt her entire world on its axis.Running from the gang war in Killrover, Oisín Cavanaugh finds himself in the DeSantis' home, hidden and newly married. He’s level-headed, determined, and devoted to his duty as heir to the Cavanaugh gang. He might have escaped death, but he can’t escape the love he left behind.Sebastian Byrnes is the walking definition of stubborn and sarcastic and he refuses to let a broken heart stand in the way of what he wants. When Oisín returns to Ireland with a new wife by his side, Sebastian’s vision of a future with the man he loves crumbles.As the DeSantis struggle to control the threat plaguing their streets, they have no choice but to harness their new alliance with the Cavanaughs. Oisín and Serafina prepare for war but Sebastian refuses to be left behind again. Ever. less