While discontent exhaled itself in murmurs among the common people, however, it fomented in dangerous conspiracies among the nobles, and Muley Abul Hassan was startled by information of a design to depose him and place his son Boabdil upon the throne. His first measure was to confine the prince and his mother in the Tower of Comares; then, calling to mind the prediction of the astrologers, that the youth would one day sit on the throne of Granada, he impiously set the stars at defiance. “The sword of the executioner,” said he, “shall prove the fallacy of those lying horoscopes, and shall silence the ambition of Boabdil.” The sultana Ayxa, apprised of the imminent danger of her son, concerted a plan for his escape. At the dead of the night she gained access to his prison, and, tying together the shawls and scarfs of herself and her female attendants, lowered him down from a balcony of the Alhambra to the steep rocky hillside which sweeps down to the Darro. Here some of her devoted adherents were waiting to receive him, who, mounting him on a swift horse, spirited him away to the city of Guadix, in the Alpuxarras. CHAPTER V. EXPEDITION OF THE MARQUES OF CADIZ AGAINST ALHAMA. Great was the indignation of King Ferdinand when he heard of the storming of Zahara, though the outrage of the Moor happened most opportunely. The war between Castile and Portugal had come to a close; the factions of Spanish nobles were for the most part quelled. The Castilian monarchs had now, therefore, turned their thoughts to the cherished object of their ambition, the conquest of Granada. The pious heart of Isabella yearned to behold the entire Peninsula redeemed from the domination of the infidel, while Ferdinand, in whom religious zeal was mingled with temporal policy, looked with a craving eye to the rich territory of the Moor, studded with wealthy towns and cities. Muley Abul Hassan had rashly or unwarily thrown the brand that was to produce the wide conflagration. Ferdinand was not the one to quench the flames. He immediately issued orders to all the adelantados and alcaydes of the frontiers to maintain the utmost vigilance at their several posts, and to prepare to carry fire and sword into the territories of the Moors.