But the besiegers were in no hurry to begin the work of death. The wealth of the harvest and the vintage spread before them its irresistible temptations, and the herds feeding in the rich pastures seemed to promise an endless feast. The cattle, the corn, and the wine were alike wasted with besotted folly, while the Turks within the walls received tidings, it is said, of all that passed in the crusading camp from some Greek and Armenian Christians to whom they allowed free egress and ingress. Of this knowledge they availed themselves in planning the sallies by which they caused great distress to the besiegers, whose clumsy engines and devices seemed to produce no result beyond the waste of time, and who felt perhaps that they had done something when they blocked up the gate of the bridge with huge stones dug from the neighboring quarries. Three months passed away, and the crusaders found themselves not conquerors, but in desperate straits from famine. The winter rains had turned the land round their camp into a swamp, and lack of food left them more and more unable to resist the pestilential diseases which were rapidly thinning their numbers. A foraging expedition under Bohemond and Tancred filled the camp with food; it was again recklessly wasted. The second famine scared away Tatikios, the lieutenant of the Greek emperor Alexius; but the crusading chiefs were perhaps still more disgusted by the desertion of William of Melun, called "the Carpenter," from the sledgehammer blows which he dealt out in battle. Hunger obtained a victory even over the hermit Peter, who was stealing away with William of Melun, when he with his companion was caught by Tancred and brought back to the tent of Bohemond. For a moment the look of things was changed by the arrival of ambassadors from Egypt. To the Fatimite caliph of that country the progress of the crusading arms had thus far brought with it but little dissatisfaction. The humiliation of the Seljukian Turks could not fail to bring gain to himself, if the flood of Latin conquests could be checked and turned back in time. His generals besieged Jerusalem and Tyre; and when the Fatimite once more ruled in Palestine, his envoys hastened to the crusaders' camp to announce the deliverance of the Holy Land from its oppressors, to assure to all unarmed and peaceable pilgrims a month's unmolested sojourn in Jerusalem, and to promise them his aid during their march, on condition that they should acknowledge his supremacy within the limits of his Syrian empire.