It was in June 1562 that Cardan finally resigned his position at Pavia, but it was not until some months after this date that the final agreement with the Bolognese Senate, lately referred to, was concluded, and in the interim he was forced to suffer no slight annoyance and persecution at the hands of his adversaries in Pavia, in Bologna, and in Milan as well. Just before he resigned his Professorship he was warned by the portentous kindling of a fire, seemingly dead,[207] that fresh mischief was afoot, and he at once determined in his mind that his foes had planned destruction against him afresh. So impressed was he at this manifestation that he swore he would not leave home on the day following. "But early in the morning there came to my house four or five of my pupils bidding me to a feast, where all the chief Professors of the Gymnasium and the Academy proposed to be present. I replied that I could not come, whereupon they, knowing that it was not my wont to dine in the middle of the day, and deeming that it was on this score that I refused to join them, said, 'Then for your sake we will make the feast a supper.' I answered that I could not on any account make one of their party, and then they demanded to know the cause of my refusal. I replied it was because of a strange event which had befallen me, and of a vow I had made thereanent. At this they were greatly astonished, and two of them exchanged significant glances, and they urged me again and again that I should not be so firmly set upon marring so illustrious a gathering by my absence, but I gave back the same answer as before."[208] They came a second time, but Cardan was not to be moved. He records, however, that he did break his vow after all by going out after dusk to see a poor butcher who was seriously ill. It is hard to detect any evidence of deadly intent in what seems, by contemporary daylight, to have been a complimentary invitation to dinner; but to the old man, possessed as he was by hysterical terrors, this episode undoubtedly foreshadowed another assault against his life. He finds some compensation, however, in once more recording the fact that all these disturbers of his peace--like the men who were concerned in Gian Battista's condemnation--came to a bad end. His rival, who had taken his place as Professor, had not taught in the schools more than three or four times before he was seized with disease and died after three months' suffering. "Upon him there lay only the suspicion of the charge, but I heard afterwards that a friend of his was certainly privy to the deed of murder which they had resolved to work upon me by giving me a cup of poisoned wine at the supper. In the same year died Delfino, and a little while after Fioravanti."[209]