At the very time, too, when my story begins, those obnoxious villains of Genoa were on the successful side of a revolution; for they had helped Emperor Andronicus to imprison his father, Emperor John, in the tall Amena tower on the north side of the city, by the Golden Horn, and to lock up his two younger brothers in a separate dungeon. It was true that Emperor John had ordered Andronicus and his little son of five to be blinded with boiling vinegar, but Genoese money had miraculously converted the vinegar into bland white wine, and had reduced the temperature from the boiling point to that of a healthful lotion, so that neither the boy nor the man were any the worse after the application than before; but Andronicus had resented the mere intention on the part of his father, and had avenged himself by taking the Empire, such as it was, for the present, while reserving the delight of murdering his parent and his brothers at a convenient season in the future. All this was very well, no doubt, and Andronicus was undisputed Emperor for the time being, because the Genoese and Sultan Amurad were willing that he should be; but Amurad had not always been his friend, and the Genoese had not always had the upper hand of the Venetians; the wind might change in a moment and a tempest might whirl him away from the throne even more quickly than the fair breeze had wafted him towards it. Zeno thought so too, and wondered whether it would please fate to make him the spirit of the storm. He cared very little about Handsome John, as Paleologus was nicknamed, but he cared a great deal for a possible chance of driving the Genoese out of Pera and of getting the island of Tenedos for the Venetian Republic. And now he had transacted the business of the day, and had dined on a roasted palamit, for it was a Friday and the palamit is the best fish that swims, from the Dardanelles to the Black Sea; and Zeno would no more have eaten meat on a day of abstinence than he would have sat down to table with a Genoese. He had been brought up to be a churchman, and though the attempt to make a priest of him had failed for obvious reasons, he was constant in observing those little rules and regulations which he had been taught to believe conducive to salvation, seeing that he was of a rash temper, prone to seek danger, and never sure of coming home alive when it pleased him to walk abroad. He was not a quarrelsome man on his own account, but he had a most wonderful facility for taking up the quarrels of other people who seemed to be in the right. The more hopeless the just case, or cause, the more certain it was that Carlo Zeno would take it up and fight for it as if it were his own.