A lot will happen in book 4 of this series. You will meet Daniel Trent, a young American journalist who is trying to find his way in the world and in the process will become a real friend to Marianna (who has been raised by Sergei and Anna as a peasant in Katyk but who is really a countess). Then their is Count Dmitri Remizov who returns to Russia after 18 years in exile to claim Marianna, the daughter he left behind. Sergei and Anna will find themselves leaving their hiding place in Katyk to help Marianna with her difficulties in St. Petersburg trying to fit in to her rightful place as a countess of Imperial Russia. Anna will also be reunited with her brother Paul for a short time. This is a story that continues to follow the Burenin and Fedorcenko families as they, with God's help, learn to survive amidst strife and upheaval during this time in Russian history. These people are strong and able to endure a lot and have a deep and abiding love of their country, despite its corrupt nature.
This is a series that really needs to be read in order to fully grasp all that is going on. YES, it is 7 books, but so far I have not tired of reading about these families and the Russian history behind each story.