The flame which had been so long kindling burst forth at last. To estimate fully the force of these popular ebullitions in the Middle Ages, we must bear in mind the susceptibility of the people to contagious emotions and enthusiasms of which we know little in our colder day. A trifle might start a movement which the wisest could not explain nor the most powerful restrain. It was during the preaching of this crusade that villages and towns in Germany were filled with women who, unable to expend their religious ardor in taking the cross, stripped themselves naked and ran silently through the roads and streets. Still more symptomatic of the diseased spirituality of the time was the Crusade of the Children, which desolated thousands of homes. From vast districts of territory, incited apparently by a simultaneous and spontaneous impulse, crowds of children set forth, without leaders or guides, in search of the Holy Land; and their only answer, when questioned as to their object, was that they were going to Jerusalem. Vainly did parents lock their children up; they would break loose and disappear; and the few who eventually found their way home again could give no reason for the overmastering longing which had carried them away. Nor must we lose sight of other and less creditable springs of action which brought to all crusades the vile, who came for license and spoil, and the base, who sought the immunity conferred by the quality of Crusader. This is illustrated by the case of a knave who took the cross to evade the payment of a debt contracted at the fair of Lille, and was on the point of escaping when he was arrested and delivered to his creditor. For this invasion of immunity the Archbishop of Reims excommunicated the Countess Matilda of Flanders, and placed her whole land under interdict in order to compel his release. How this principle worked to secure the higher order of recruits was shown when Gui, Count of Auvergne, who had been excommunicated for the unpardonable offence of imprisoning his brother, the Bishop of Clermont, was absolved on condition of joining the Host of the Lord.[120]