Leaving the capital they wandered up into the mountains for weeks, visiting one castle after another. It was no easy matter in all cases to get so near to these prisons as to give a hope that their voice might be heard within, or an answer received without. More than once cross-bow bolts were shot at them from the walls when they did not obey the sentinel's challenge and move further away. Generally, however, it was in the day time that they sang. Wandering carelessly up, they would sit down within earshot of the castle, open their wallets, and take out provisions from their store, and then, having eaten and drunk, Blondel would produce his lute and sing, as if for his own pleasure. It needed, however, four visits to each castle before they could be sure that the captive was not there; for the song had to be sung on each side. Sometimes they would cheat themselves with the thought that they heard an answering voice; but it was not until the end of the fourth week, when singing outside the castle of Diernstein, that a full rich voice, when Blondel ceased, sang out the second stanza of the poem. With difficulty Blondel and Cuthbert restrained themselves from an extravagant exhibition of joy. They knew, however, that men on the prison wall were watching them as they sat singing, and Blondel, with a final strain taken from a ballad of a knight who, having discovered the hiding place of his ladylove, prepared to free her from her oppressors, shouldered his lute, and they started on their homeward journey. There was no delay now. At times they sang indeed at castles; but only when their store was exhausted, for upon these occasions Blondel would be presented with a handsome goblet or other solid token of the owner's approval, and the sale of this at the next city would take them far on their way. They thought it better not to pass through France, as Philip, they knew, was on the watch to prevent any news of King Richard reaching England. They therefore again passed through Brabant, and so by ship to England. Hearing that Longchamp, Bishop of Ely, one of Richard's vicegerents, was over in Normandy, and rightly deeming him the most earnest of his adherents, they at once recrossed the sea, and found the warlike prelate at Rouen. Greatly delighted was he at hearing that Richard's hiding-place had been discovered. He at once sent across the news to England, and ordered it to be published far and wide, and himself announced it to the barons of Normandy. Then with a gorgeous retinue, including Cuthbert and Blondel, he started for Vienna, and arriving there demanded an interview with the emperor.