Diana Cary-Gallagher is the third (at least) only daughter of an only daughter. After her beloved granny, Leora, passes, Diana and her mother, Margaret (Ms. Margo to her social media following) are alone. Actually alone together, as Margo has moved in with Diana, who works as an OB at a DC hospital. 75-year-old Margo mostly influences. One day a good/bad decision leads to Diana having time on her hands, and a family mystery to solve. She chases the mystery to the Philippines, where her grandfather disappeared during WWII.
It's a feel good read with a conflict that is solved easily enough not to be heartrending. And, SPOILER, no one dies, which is nice.