37 Once more, on thinking the matter over and fearing that merchants coming from the East might make him known, he fled to the interior, some twenty miles from the sea, and there on an abandoned piece of ground, every day tied up a bundle of firewood which he laid upon the back of his disciple, and sold at some neighbouring mansion. They thus supported themselves and were able to purchase a morsel of bread for any chance visitors. But that came exactly to pass which is written: “a city set on a hill cannot be hid.”
It happened that one of the shields-men who was vexed by a demon was in the basilica of the blessed Peter at Rome, when the unclean spirit within him cried out, “A few days ago Christ's servant Hilarion entered Sicily and no one knew him, and he thinks he is hidden. I will go and betray him.” Immediately he embarked with his attendants in a ship lying in harbour, sailed to Pachynus and, led by the demon to the old man's hut, there prostrated himself and was cured on the spot.
This, his first miracle in Sicily, brought the sick to him in countless numbers (but it brought also a multitude of religious persons); insomuch that one of the leading men who was swollen with the dropsy was cured the same day that he came. He afterwards offered the saint gifts without end, but the saint replied to him in the words of the Saviour to his disciples: “Freely ye received, freely give.”
Source: The Life of S. Hilarion (New Advent)