At the expected time Agrippa came home, and to his great surprise found a number of devils capering and playing strange antics about, and on the roof of his house. By his art he caused them to desist from their sport, and with authority demanded what was the cause of this novel appearance. The chief of them answered. He told how they had been invoked, and insulted, and what revenge they had taken. Agrippa became exceedingly alarmed for the consequences to himself of this unfortunate adventure. He ordered the demon without loss of time to reanimate the body of his victim, then to go forth, and to walk the boarder three or four times up and down the market-place in the sight of the people. The infernal spirit did as he was ordered, shewed the student publicly alive, and having done this, suffered the body to fall down, the marks of conscious existence being plainly no more. For a time it was thought that the student had been killed by a sudden attack of disease. But, presently after, the marks of strangulation were plainly discerned, and the truth came out. Agrippa was then obliged suddenly to withdraw himself, and to take up his residence in a distant province. [203] Wierus in his well known book, _De Praestigiis Demonum_, informs us that he had lived for years in daily attendance on Cornelius Agrippa, and that the black dog respecting which such strange surmises had been circulated, was a perfectly innocent animal that he had often led in a string. He adds, that the sole foundation for the story lay in the fact, that Agrippa had been much attached to the dog, which he was accustomed to permit to eat off the table with its master, and even to lie of nights in his bed. He further remarks, that Agrippa was accustomed often not to go out of his room for a week together, and that people accordingly wondered that he could have such accurate information of what was going on in all parts of the world, and would have it that his intelligence was communicated to him by his dog. He subjoins however, that Agrippa had in fact correspondents in every quarter of the globe, and received letters from them daily, and that this was the real source of his extraordinary intelligence. [204] Naudé, in his Apology for Great Men accused of Magic, mentions, that Agrippa composed a book of the Rules and Precepts of the Art of Magic, and that, if such a work could entitle a man to the character of a magician, Agrippa indeed well deserved it. But he gives it as his opinion that this was the only ground for fastening the imputation on this illustrious character.