“Karolina’s Twins” by Ronald H. Balson is a beautifully told story about an older woman trying to fulfill a promise she made to her best friend during the years they were in a Nazi camp during World War II.
Lena is currently a well-to-do woman living in Chicago. She has, in her late eighties, decided that she needs to fulfill the promise she made to her friend Karolina to take care of Karolina’s twin babies. She asks husband-and-wife team Liam Taggart and Catherine Lockhart (investigator and attorney respectively) to help her find them. In order for the couple to investigate, she has to tell them her story, her history.