On to Belgrade swept the grand army, with its multitude of standards and all the pomp and glory of its vast array. The slowness with which it came was due solely to its size, not in any sense to lack of energy in the warlike sultan. An anecdote is extant which shows his manner of dealing with difficulties. He had sent forward an engineer with orders to build a bridge over the river Drave, to be constructed at a certain point, and be ready at a certain time. The engineer went, surveyed the rapid stream, and sent back answer to the sultan that it was impossible to construct a bridge at that point. But Solyman's was one of those magnificent souls that do not recognize the impossible. He sent the messenger back to the engineer, in his hand a linen cord, on his lips this message: "Your master, the sultan, commands you, without consideration of the difficulties, to complete the bridge over the Drave. If it be not ready for him on his arrival, he will have you strangled with this cord." The bridge was built. Solyman had learned the art of overcoming the impossible. He was soon to have a lesson in the art of overcoming the difficult. Belgrade was in due time reached. Here the sultan embarked his artillery and heavy baggage on the Danube, three thousand vessels being employed for that purpose. They were sent down the stream, under sufficient escort, towards the Austrian capital, while the main army, lightened of much of its load, prepared to march more expeditiously than heretofore through Hungary towards its goal. Ferdinand of Austria, alarmed at the threatening approach of the Turks, had sent rich presents and proposals of peace to Solyman at Belgrade; but those had the sole effect of increasing his pride and making him more confidant of victory. He sent an insulting order to the ambassadors to follow his encampment and await his pleasure, and paid no further heed to their pacific mission. The Save, an affluent of the Danube, was crossed, and the army lost sight of the great stream, and laid its course by a direct route through Sclavonia towards the borders of Styria, the outlying Austrian province in that direction. It was the shortest line of march available, the distance to be covered being about two hundred miles. On reaching the Styrian frontier, the Illyrian mountain chain needed to be crossed, and within it lay the obstacle with which Solyman had to contend. The route of the army led through a mountain pass. In this pass was a petty and obscure town, Guntz by name, badly fortified, and garrisoned by a mere handful of men, eight hundred in all. Its principal means of defence lay in the presence of an indomitable commander, Nicholas Jurissitz, a man of iron nerve and fine military skill.