The Night Flowers by Sara Herchenroether

Thirty years after bones of a woman and two children were discovered in New Mexico's Gila National Forest, police detective Jean Martinez begins to look into the case again. In Connecticut, genealogy librarian and recent breast cancer survivor Laura MacDonald sees an article about the new investigation and decides to use her own skills to help identify the trio, driven by the fact that the day the bones were found in 1983 was also the day she was born. The Night Flowers details Jean's and Laura's inquiries as they come together to uncover the truth--and possibly catch a murderer. The novel also explores the backgrounds of the woman killed, as she and the two girls become ghostly presences around Jean and Laura.