Eleanor's world is crumbling. Abandoned by the man she loves and facing a new threat from her vindictive cousin, Lord Ashworth, she believes her only option is to save her unborn child by agreeing to an annulment. But just as she is about to make the gravest mistake of her life, the Duke of Northwood returns.

He finds her cornered by Ashworth and his heart breaks all over again. He has spent weeks in a self-imposed exile, tormented by the thought of losing Eleanor. Now, seeing her in danger, all his fears and insecurities fade away. Gabriel realizes that his greatest mistake wasn't staying, but ever leaving. He confronts her cousin with a raw fury and a newfound clarity of purpose, determined to win his wife back and create the real family he never thought he deserved.

Now, he must prove his love to Eleanor and convince her that he wants a true marriage, a family, and a life together. But Eleanor is still holding a secret close to her heart—the baby. With all their past hurts and misunderstandings laid bare, can a vow made in convenience be renewed in love? Or will the secrets they keep from each other tear their family apart before it even has a chance to begin?