The coming of the monster Cacus had changed everything.

It was Potitia who had seen him first, that day she headed down to the river to wash a basket of clothes. At the sight of him, she screamed, dropped the basket, and fled. The creature ran after her, making a hideous noise that made the hair rise on the back of Potitia’s neck: “Cacus! Cacus!”

Just when her energy flagged and he might have caught her, the monster gave up the chase. Potitia reached the settlement unharmed. She was convinced that Fascinus, and Fascinus alone, had saved her. All the way back to the village, she ran with one hand at her throat, grasping the amulet tightly, begging for Fascinus’s protection, whispering aloud, “Save me! Save me, Fascinus!” Afterward, trembling with relief, she whispered again to the amulet, giving it her thanks and pledging her devotion. It was a prayer that Potitia uttered, in just such a manner as the Phoenicians would have understood, made not to a nameless numen that inhabited a thing or place, but to a powerful, superhuman entity that possessed the intelligence to understand her words. She had not offered ritual propitiation to a numen, but had prayed directly to a god. In that moment, although Potitia acted with no idea of the significance of what she had done, Fascinus became the first native god to be worshiped in the land of the ruma.

For a long time, no one but Potitia had seen the monster, and there were those in the settlement, listening to her description of Cacus, who thought that she must have imagined the encounter on the path. Her family, after all, were known for their fanciful beliefs, showing off the amulet they called Fascinus and hinting that their line had sprung from the union of a numen and a woman-as if such a thing were possible!

Then, little by little, it became evident that some malicious creature was indeed among them. Bits of food went missing, along with small objects that no one had cause to steal. Now and again, objects of value were found broken-a spinning wheel, a clay pot, a toy wagon made of wood-as if some overgrown, immensely strong child smashed them out of spite. The troublemaker struck at night and left no trail; Cacus had grown skillful at covering his tracks.