Andrew Paul Jackson's Grigori Efimovich: The Memory of Liars premieres this month at the Boston Conservatory in Massachusetts. The one-act opera, on which I served as librettist, details the shaky connections between Felix Yusupov, a bumbling traitor to Russia's last Tsar, and his co-conspirators in the death of Rasputin. The monk from Siberia, Grigori Efimovich, has been called a sexual deviant, the devil incarnate, and the downfall of imperialist Russia. He was also a father, a mystic, and the beloved guardian of Alexei, the Tsarevich, a sickly boy and the heir to the throne of the Russian Empire.