War between Christians was hateful to Louis because it prevented any combined action against the Turks; for in him, as in Innocent III, burned the old crusading spirit that had never quite died out in France. At the beginning of the thirteenth century a French peasant lad, Stephen, had preached a new crusade, saying that God had told him in a vision that it was left for Christian children to succeed where their elders had failed in recovering the Holy Sepulchre. Thousands of boys and girls, some of them only twelve or thirteen years of age, collected at Marseilles in eager response to this message. They expected that a pathway would be opened to them across the sea as in the days of Moses and the Chosen People, and when they had waited for some time in vain for this miracle, they allowed themselves to be entrapped by false merchants, who, though Christian in name, would allow nothing to stand in the way of the gold that they coveted. Enticed on board ship, disarmed, bound, and manacled, the unfortunate young crusaders were sold in the market-places of Egypt and Syria to become the slaves of the Moslems whom they had hoped to conquer. When he had first heard of the Children’s Crusade, Innocent III had exclaimed, ‘The children shame us indeed!’ and St. Louis, the inheritor of their spirit, felt that his kingship would be shamed unless he used his power and influence to convert and overthrow the Turk. [Sidenote: The Seventh Crusade] One of his subjects, who loved him, the Sieur de Joinville, has left a graphic personal account of the expedition undertaken against Egypt. From Cyprus, the head-quarters of the crusaders, a fleet of some one thousand eight hundred vessels, great and small, sailed to Damietta, at the mouth of the Nile; and Louis, seeing his ensign borne ashore, would not be restrained, but leaped himself into the water, lance in hand, shouting his battle-cry of ‘Mont-joie St. Denys!’ Before the impetuosity of an army inspired by this zeal the town soon fell; but the mediaeval mind had reckoned little with difficulties of climate, and soon the unhealthy mists that hung over the delta of the Nile were decimating the Christian ranks with fever and dysentery, while many of the best troops perished in unimportant skirmishes into which daring rather than a wise judgement had led them. The advance once checked became a retreat, the retreat a rout; and St. Louis, refusing to desert his rear-guard, was taken prisoner by the Mahometans. The disaster was complete, for only on the surrender of Damietta and the payment of a huge ransom was the King released, but his patience and chivalry redeemed his failure from all stain of ignominy. Instead of returning to France he sailed to the Holy Land; where, though Jerusalem had again fallen to the Turks after Frederick II’s temporary possession of it, yet a strip of seaboard, including the port of Acre, remained to the Christians.