The Changeling of the Third Reich Book III

Is Anything Stronger Than the Bond Between Parent and Child?
It's the summer of 1969. After having visited the country that once held her hostage in three concentration camps as it stole everything and everyone she loved, Dr. Bridget Castle has finally made peace with her past. However, things take a drastic turn when a family friend claims to have spotted a woman who was killed in a Blitz attack, and questions arise about the prospect of the deceased natural daughter of Bridget's adopted parents possibly being alive.
To get to the bottom of things, the Nazi who raised Bridget's brother offers to fund an intense investigation and promises to leave no stone unturned. But as the investigator uncovers clues in the present, remnants of the past taunt Bridget and threaten to smother her. As life shows her again that family is connected by more than mere genetics, will she be able to embrace the revelations that are unearthed?