It is 1914, and the world has been on the brink of war so often, many New Yorkers treat the subject with only passing interest. Eliza Ferriday is thrilled to be traveling to St. Petersburg with Sofya Streshnayva, a cousin of the Romanovs. The two met years ago one summer in Paris and became close confidantes. Now Eliza embarks on the trip of a lifetime, home with Sofya to see the splendors of Russia: the church with the interior covered in jeweled mosaics, the Rembrandts at the tsar’s Winter Palace, the famous ballet. But when Austria declares war on Serbia and Russia’s imperial dynasty begins to fall, Eliza escapes back to America, while Sofya and her family flee to their country estate. In need of domestic help, they hire the local fortune-teller’s daughter, Varinka, unknowingly bringing intense danger into their household. On the other side of the Atlantic, Eliza is doing her part to help the White Russian families find safety as they escape the revolution. But when Sofya’s letters suddenly stop coming, she fears the worst for her best friend.