For six years, Y/N Black has been inseparable from her best friend, Thomas Beckett, his girlfriend—her older sister, Grace—and Thomas’s older brother, Heathcliff. They’re more than friends. They’re family. Or at least they were. The summer before senior year changes everything. Y/N returns to school no longer the girl everyone overlooked, and for the first time, Heathcliff Beckett truly sees her. Quiet, dangerously intense, and impossible to read, Heathcliff knows she is completely off-limits. She’s his brother’s best friend’s little sister. The one person he should never want. But stolen glances soon become lingering touches, secret meetings become hidden kisses, and the line between right and wrong begins to disappear. Because some secrets are worth risking everything for. Especially when the one person you can’t have becomes the only one you can’t live without.