The crusaders began to starve in Antioch, and gnawed leather and ate other unusual substances: the price of meat rose to absurd heights. Godfrey of Bouillon paid 15 marks of silver for the flesh of a camel and his steward Baldric three marks for a she-goat. Alexios I's retreat from Philomelion shocked the besieged, and some lesser leaders planned to escape, leaving ordinary crusaders to their fate. Kerbogha, by contrast, became bolder still. Godfrey, Bohemond, Robert of Flanders and Adhemar of le Puy stressed the religious duty to stay and also the difficulty and danger of escape, and at the same time reinforced the guards at the gates with experienced men. The memory of William of Grandmesnil and his fellow-traitors was cursed ever more fiercely