The Duke's Scottish Lass. Brethren of Stone

She doesn't want to want him... Lady Delia Alban absolutely cannot marry the handsome rake, Roderick Maddox, fourth Duke of Manchester, despite her brother Stone's insistence she do just that. Though he has long reformed his ways, he steals her breath away every time their eyes meet and she simply doesn't deserve that kind of happiness. Not after the death of her brother, Reginald. She must pay penance, because, if not for her, he would still be alive.
He never expected to lose his heart... Roderick Maddox, has known for years he would marry Delia. Before Reginald's death, he made a promise to his friend, not only would he care for Reginald's sister, but he would reform himself into the type of man Delia deserved. He never expected Delia to ignite such passion or to be so resistant to him. Nor did he realize he held the secret about Reginald's death that could crush their budding feelings forever.
Six siblings unite after the death of their parents around their eldest brother, Stone. They consider blood to be a binding oath and vow to protect one another. They all must face their own demons as they find love and their places in the world. This story was formerly published as Taming a Lady Wolf. Delia's brother's decided their stories needed to be told as well. This is now the prequel novella to the series, Brethren of Stone.