For Karen M. McManus, You'll Be the Death of Me began as a kernel of an idea in 2017. Four years later, the YA thriller is ready for readers to dive into. Hitting shelves Nov. 30, the book follows childhood friends Cal, Ivy, and Mateo as they skip school together in spite of their fractured ties and stumble onto a dead body. The story takes place over the course of the day as they try to get to the bottom of the crime and deal with their own secrets along the way.