Two couples. One HEA and one Prequel Cliffhanger. GIULIA Our marriage cemented the alliance between our families. Emotions shouldn't come into it, but I fell in love with the ruthless underboss I married. Only to him, I'm nothing more than incubator to carry his heirs. I adore our son, but I've been putting off having another child. Raff is going to flip when he finds out about the birth control. RAFFAELE She is smart and beautiful, but there is no room in the life of a mafia underboss for tender emotions. At least that's what I thought when we got married. Six years has changed a lot, but my wife thinks I'm the same merciless man she wed. To everyone else, I am. But not to her. She'll forgive me for sending her to a fertility specialist. She has to, because I will never let her go. Giulia and Raffaele's story is a steamy mafia romance with a guaranteed HEA. No cheating. CATALINA My sister is engaged to the don that sets my senses ablaze. I have no choice but to make plans to run. To escape my father and this incessant physical need Severus sparks in me. SEVERU Someone is attacking my mafia. I have to protect la famiglia at all costs, even if that means agreeing to marry a woman I have no feelings for. I just have to ignore the way my body reacts to her sister. As the prequel to Urgent Vows, this is the only book in the Syndicate Rules series that is not a standalone. Because it is a prequel, Catalina and Severu's story ends on a cliffhanger.