Her remains were found only a short distance from the settlement, at the foot of the steep hill on the far side of the Spinon. One of the searchers, looking up to avert his eyes from the horrible sight, glimpsed a movement on the hillside above. From behind a bramble-covered lip of stone, a hideous face peered down for a moment, then disappeared. A moment later, a shower of rocks rained down on the searchers, who fled. Peering up at the hillside from a safe distance, they discerned what appeared to be a cave, its opening obscured by brambles. None of them could see a way to scale the hillside. Even if it could be scaled, none of them could imagine what would await them once they reached the mouth of the cave.

Back at the settlement, the searchers told what they had discovered. To her horror, Potitia realized that the monster had taken up residence in her secret cave, which was a secret no longer.

From his hole high up in the side of the hill, Cacus ventured out at night to terrorize the settlement. During the day, he stayed hidden in the cave.

More than once, the settlers attempted to scale the hillside and attack him in his lair. Bellowing his name, Cacus dropped stones on them. One settler fell and broke his neck. Another was struck in the eye and blinded. Another managed to draw closer to the mouth of the cave than anyone else, but was killed instantly by a stone that struck his forehead. Instead of falling, his limp body became caught on sharp rocks and brambles. No one dared to climb up and retrieve it. There it hung for several days and nights, a horrifying rebuke to those who had sought to destroy the monster. One morning, the body was no longer there. Cacus had claimed it. The man’s bones, picked clean, appeared one by one at the foot of the hill as Cacus tossed them out.

It was Potitius who suggested that the hillside be set afire. If the flames and smoke did not kill the monster outright, they might at least drive him from his lair.