When Nora's world shatters, it happens in the cruelest way imaginable - her boyfriend and her best friend. The two people she trusted most, bound together by betrayal and a lie that cuts too deep to forgive. Blinded by heartbreak and driven by fury, Nora makes a reckless choice: she turns to the one man she shouldn't - Tristan, her ex's older brother. What begins as a desperate act of revenge soon becomes something neither of them expected - a marriage that feels dangerously real. But love born out of anger is fragile, and as secrets begin to surface, Nora must confront the truth about her heart, her past, and the man who may be her only salvation. In a world where betrayal and love walk the same line, Vow of Vengeance is a story of heartbreak, healing, and the power of a love that was never meant to happen - but refused to be denied.

Killing people was easy for Kingston Knight, selling drugs was easy...but falling in love was something he knew nothing about. He watches the way his little sister has fallen in love and wonder if he can ever treat a woman like that? Can he put his guard down to let someone other than family in? Promise Marshall is a little rough around the edges, being raised in a orphanage and running away at the age 16 she had no choice but to dance. With her troubled past that makes her the woman she is now...can she also let her guard down? Can she be that soft girl?

Kaia has been dating Beast, an Enforcer from the Dogz of Hell MC, for about a year. One night, Kaia is "initiated" by the women of the MC Club. However, the initiation is not what it was supposed to be. When Kaia gives Beast the opportunity to back her up, he gives his loyalty to his club. Kaia calls in her protection, 4 brothers who will do whatever it takes to protect their little sister. And after losing what he had wanted most, Beast begins to question loyalty of his MC and brothers.