As enjoyable as the subject and characters of this book were, I had major problems with the timeline of events in the book. Most of the book's plot takes place over a period of less than two years. Everything is too fast! Especially in wartime, events just didn't move along that smoothly. Immigration took months to arrange, and Danielle wouldn't have been settled in America, fully acclimated to her new country (and already fluent in English!) and ready to travel to the west coast and open a high-end luxury business in just a few months.
And the whole story line with Heinrich is just implausible! I'm quite certain that Hitler wouldn't have approved leave for senior Nazi officers to travel to Los Angeles in the middle of 1941 to pursue their personal vendettas! Gimme a break.