The murderers of Huss did not stand quietly by and witness the triumph of his cause. The pope and the emperor united to crush out the movement, and the armies of Sigismund were hurled upon Bohemia. But a deliverer was raised up. Ziska, who soon after the opening of the war became totally blind, yet who was one of the ablest generals of his age, was the leader of the Bohemians. Trusting in the help of God and the righteousness of their cause, that people withstood the mightiest armies that could be brought against them. Again and again the emperor, raising fresh armies, invaded Bohemia, only to be ignominiously repulsed. The Hussites were raised above the fear of death, and nothing could stand against them. A few years after the opening of the war, the brave Ziska died; but his place was filled by Procopius, who was an equally brave and skilful general, and in some respects a more able leader. The enemies of the Bohemians, knowing that the blind warrior was dead, deemed the opportunity favorable for recovering all that they had lost. The pope now proclaimed a crusade against the Hussites, and again an immense force was precipitated upon Bohemia, but only to suffer terrible defeat. Another crusade was proclaimed. In all the papal countries of Europe, men, money, and munitions of war were raised. Multitudes flocked to the papal standard, assured that at last an end would be made of the Hussite heretics. Confident of victory, the vast force entered Bohemia. The people rallied to repel them. The two armies approached each other, until only a river lay between them. “The crusaders were in greatly superior force, but instead of dashing across the stream, and closing in battle with the Hussites whom they had come so far to meet, they stood gazing in silence at those warriors.”(153) Then suddenly a mysterious terror fell upon the host. Without striking a blow, that mighty force broke and scattered, as if dispelled by an unseen power. Great numbers were slaughtered by the Hussite army, which pursued the fugitives, and an immense booty fell into the hands of the victors, so that the war, instead of impoverishing, enriched the Bohemians.