In Slytherin, Lilliane Blackwood is brilliant, discreet, and proper. A prefect and exemplary student, she watches Draco Malfoy from a distance without allowing herself to want more. When she discovers she is not the only one who sees him, she steps—just barely—outside the order that has always worked for her and turns to someone outside her structured world. What begins as a practical arrangement grows complicated when the attention she sought in one place begins to appear in another.