Moscow, 1477. It has been five years since Ivan III married the Byzantine princess Sophia Palaiologos. Moscow, once a backwater forest principality, is becoming one of the most powerful states in Eastern Europe. Sophia doesn’t like old Muscovite customs and life in a wooden capital with patched fortress walls and crumbling temples. Meanwhile, the influence of the cunning, ambitious Byzantine woman is growing, and not everyone is pleased with that. So when a wave of mysterious murders rolls through Moscow, it is precisely Sophia who is accused of breaking the ancient order and letting foreigners into the city—serving the Devil…