Achillas commanded the mainland, with the exception of what Caesar had walled off, and the latter the sea--except the harbor. Caesar, indeed, was victorious in a sea-fight, and when the Egyptians consequently, fearing that he would sail into their harbor, had filled up the entrance all except a narrow passage, he cut off that outlet also by sinking freight ships full of stones; so they were unable to stir, no matter how much they might desire to sail out. After this achievement provisions, and among other things water, were brought in more easily. Achillas had deprived them of the city water supply by cutting the pipes. [-39-] While these events were taking place one Ganymedes, a eunuch, abducted Arsinoë, as she was not very well guarded, and led her out to the people. They declared her queen and proceeded to prosecute the war more vigorously, inasmuch as they now had a representative of the race of the Ptolemies. Caesar, therefore, in fear that Pothemos might kidnap Ptolemy, put the former to death and guarded the latter strictly without any further dissimulation. This contributed to incense the Egyptians still more, to whose party numbers were added daily, whereas the Roman soldiers from Syria were not yet on the scene. Caesar was anxious to bring the people to a condition of peace, and so he had Ptolemy take his stand on a high place from which they could hear his voice and bade him say to them that he was unharmed and was averse to warfare. He urged them to peaceful measures and promised that he would arrange the details for them. Now if he had talked thus to them of his own accord, he could have persuaded them to become reconciled; but as it was, they suspected that it was all prearranged by Caesar, and they would not yield.