Before She Disappeared by Lisa Gardner

The novel follows Frankie Elkin, a middle-aged woman who dedicates her life to finding missing persons that the world has forgotten. She arrives in a rough Boston neighborhood to search for Angelique Badeau, a Haitian teenager who vanished months earlier. As Frankie delves into Angelique's life, she navigates a community fraught with tension and distrust, uncovering secrets and facing danger. Her relentless pursuit of the truth not only brings her closer to solving the mystery but also forces her to confront her own haunted past. Through determination and empathy, Frankie strives to bring closure to Angelique's family and find redemption for herself.