It hits just as she lifts her quill out of an inkwell. Her hand freezes. The quill, dropped, stains the letter she was just about to sign.The mantel clock begins to chime. She recalls being frightened as a child to see the hands of a clock turned back, believing time itself might go back and she would be forced to live again through everything she had already lived through, depriving her of the adventure of the future.The pain doesn’t stop or diminish. It is already nine o’clock and she is still behind with the reading she must finish before her secretary arrives. She considers calling Zotov, her valet, but dismisses the thought quickly. The headache will go away by itself, but once her old servant begins to fuss, she won’t be able to send him away.Pani, her Italian greyhound, sniffs her mistress’s hand with fierce concentration, licking the skin of her palm. The dog is slender and fine-boned, a direct descendant of beloved Zemira, who lies buried in the Tsarskoye Selo gardens.“I’ve nothing for you there,”