"The Erinyes [called the Furies in Ancient Rome] were the punishers of sinners, called 'those who walk in darkness.' Weeping tears of blood and hissing with hair of vipers, they would descend like a storm. As long as there was sin in the world, they could not be banished." ~ Aeschylus

William-Adolphe Bouguereau, The Remorse of Orestes, 1862