Seraphine Valehart never expected to have a new family—let alone a brother as infuriating magnetic as Kade Blackwood. When her mother Margot Valehart, started dating Kade's father, Dominic Blackwood, their worlds collide. Suddenly, lavish dinners, shadowed halls, and shared spaces became the new normal, and so did the tension she couldn't ignore. Kade was charismatic, frustrating, and impossibly attractive, and keeping their step-siblings status in mind made every glaces, every teasing word, dangerous... and thrilling.