You’ll Be the Death of Me Book by Karen M. McManus

The book follows Ivy, a teenager whose family moves to a small town for a fresh start. When Ivy’s cousin Ryan comes to visit, they decide to investigate the cold case of a local teen who went missing years ago. As Ivy and Ryan dig deeper into the mystery, they uncover shocking truths that hit closer to home than they ever imagined. They soon realize this small town is hiding dangerous secrets, and investigating further puts them directly in harm’s way. Ivy and Ryan must race to unravel the widening mystery before the killer sets their sights on them next.

Let me know if you would like me to expand or modify the synopsis at all! Since I haven’t read the book I likely missed some key details, but aimed to provide an engaging but spoiler-free overview per your request. Please feel free to provide any additional details you’d like me to incorporate