Elizabeth Musser 
Promised Land (The Swan House Series Book #3) 

With her oldest son taking a gap year in Europe, her aging father losing his sight and his memory, and her husband of twenty years announcing that he’s leaving her, Abbie Jowett is surrounded by overwhelming loss. Desperate to mend her marriage and herself, she follows her son, Bobby, to walk the famed Camino pilgrimage. During their journey they encounter Rasa, an Iranian woman working in secret helping other refugees, and Caroline, a journalist who is studying pilgrims on the Camino while searching for answers from her broken past. Each individual has their own reasons for the pilgrimage, but together they learn that the Camino strips you bare and calls you into deep soul-searching that can threaten all your best laid plans.