At the expected time Agrippa came home, and to his great surprise found a number of devils capering about, and playing strange antics on the roof of his house. By his art he caused them to desist from their gambols, of which he demanded the cause. The chief of them then related to him what he had done, how he had been disturbed and insulted, and how he had thought proper to revenge himself. Agrippa became much alarmed at the probable consequences of this unfortunate adventure, and he ordered the demon, without loss of time, to reanimate his victim, and walk about the streets with him, that the public might behold him alive. The infernal spirit reluctantly obeyed, and went forth with the student in the marketplace and promenades. This excursion over, however, he maliciously allowed his companion to fall down, when life once more flitted from his body. For a time it was thought that the student had been killed by a sudden attack of illness; but, presently, the marks of strangulation became evident, and the truth came out. Agrippa was thus suddenly obliged to quit the town, and seek refuge in a distant state. It was further related of this supposed wizard, that he was always accompanied by a familiar spirit in the shape of a black dog; and that when he lay on his deathbed he was earnestly exhorted to repent of his sins. Struck with remorse, he took hold of the dog, and removed from his neck a collar studded with cabalistic nails, exclaiming, "Begone, wretched animal, that has been the cause of my perdition!" and lo! the dog immediately ran away, and, plunging into the river Soane, disappeared. It is to be regretted that historians do not relate whether the water hissed or not when the canine devil took his last leap. It merits notice, that the mystic and medicinal celebrity of various substances have to this hour survived the traditions of their superstitious origin; coral, for instance, which was considered as possessed of the power of keeping off evil spirits, and rendering effete the malefices of the evil eye, was constantly worn as an amulet; and Paracelsus informs us that it should be worn round the necks of infants, as an admirable preservative against fits, sorcery, charms, and poisons. We still find necklaces of this substance suspended by fond mothers and nurses round the necks of infants. In the West Indies these chaplets are worn by the negroes as a magic protection against Obiism, and they even affirm that the colour of the coral is affected by the state of health of the wearer, and becomes paler when he is ill.