About the book: 2016 / A storm is gathering over Russia again: the Crimeans are raiding, the Turkish Sultan is preparing for war, the boyars are weaving intrigues... How can one remain indifferent? Sophia, the beloved sister of Tsarevich Alexei, is simply obliged to intervene. A new bloody battle is ahead, in which the Russians and Poles must stand shoulder to shoulder against a common enemy. And survive. And win. And in order to help both your brother and your family, you need to take on a heavy burden of responsibility - to build ships, organize the production of weapons, improve relations between Rus' and its neighbors... Could an ordinary princess be able to do all this? But can a woman from the future cope with this burden??