The principal preoccupation of the militant Prior of Capua had been to make it formidable on the side facing the sea; perhaps the designer had never contemplated the possibility that the day might dawn when it would be attacked from the landward side! However this may have been, Mustafa decided that it could and should be carried on this, its weakest face, and made his preparations accordingly. As far as it was possible to open trenches this was done, at the most prodigal expenditure of the lives of the pioneers. Where the rock proved absolutely impossible of manipulation redoubts were constructed of massive beams on which thick planks were bolted, the whole covered with wet earth which had to be collected with incredible toil from the country at the back. Disembarking their siege-guns, and utilising the cattle of the islanders for transporting them, the great cannon of the Turks were dragged up the slopes of the Mount and got into position; and by the 24th of May fire was opened on St. Elmo with ten guns which threw balls weighing eighty pounds. Besides these there were two culverins which threw balls of sixty pounds, and a huge basilisk, the projectile from which weighed no less than one hundred and sixty pounds. A terrible fire was opened against the walls of the fort, and so destructive did it immediately become that the Bailli of Negropont, the Knight in command, very soon became aware that his trust must be in the stout hearts and strong arms of his garrison; as the walls by which they were surrounded were hourly crumbling into nothingness. Regarding the matter from this point of view, he sent at once to the Grand Master by the Chevalier La Cerda demanding succour; this officer, “rendered eloquent by fear,” exaggerated the peril to which the fort was exposed and stated that it could not possibly hold out for more than another eight days. “What losses have you had?” demanded the Grand Master. “Sire,” replied La Cerda, “the fort may be compared to a sick man in his extremity, in the last stage of weakness, unable to sustain himself except by perpetual cordials and remedies.” “Then I myself will be your physician,” said the Grand Master with contempt, “and I will bring others with me. If that cannot cure you of fear it will, at all events, prevent the infidels from seizing upon the fort.”