Well, the ending did disappoint me. I do wonder if she just felt overwhelmed after her writing partner left after the completion of #3. The remaining books just rushed to the major events of Russian history, almost like pit stops in the Amazing Race. The final installment ends after the Romanov execution. The Civil War is still going. In fact, the Soviet Union would not appear until 1922. Does the author even know this fact? I ask only because too many things in this book are reflective of post-1922 life, not pre-1922 life. I realize that not many people would catch this, but she jumps the gun on so many things, making life to be more post-1922 when that certainty was not the case. Did this book really need to be a separate book? In my opinion, it should have been merged with the previous one. Really it did not merit a separate book, as not that much happened in this book. Seriously, it was pretty dull. Her heart was not into it, and I feel that she didn't know how to end it.
Again, read 1-3 as those books are the best in the series.
Folks, the more interesting story is what happens after the Romanovs die. She stops when the drama starts. If you wish to learn how life is after 1922, one good read is "We The Living" by Ayn Rand. Also, I invite you to read real Russian history.
This book tied up lots of loose ends of stories in the series. I wish it had spoken more of what happened to Lenin and Stalin. I did like the bibliography the author added at the end of the book for further research.