A Jew was traveling on foot to Rome, and being suddenly overtaken at nightfall by a great storm took refuge in the ruins of a pagan temple. Wearied by his day’s journey, he soon fell fast asleep.
At dead of night he was suddenly awakened by horrible noises and a suffocating odor. His horrified glance fell on a number of devils, whose hideous forms filled him with terror. Remembering that the Christians whom he knew used the holy Sign in all dangers, he too, as best he could, made the Sign of the Cross, which at once drove the devils in headlong flight from the temple. On reaching Rome he recounted this fact, and the Holy Father ordered a rigorous examination of his statements to be made. These were shown to be perfectly true.
~Source:”How To Be Happy,How To Be Holy”