Emboldened by numbers, and by the enthusiasm of his troops, Pelayo directed his march towards the fortress of Gijon. The renegado Magued, however, did not await his coming. His heart failed him on hearing of the defeat and death of Alcamar, the destruction of the Moslem army, and the augmenting force of the Christians; and, abandoning his post, he marched towards Leon with the greatest part of his troops. Pelayo received intelligence of his movements, and advancing rapidly through the mountains, encountered him in the Valley of Ollalas. A bloody battle ensued on the banks of the river which flows through that valley. The sacred banner was again victorious; Magued was slain by the hand of Pelayo, and so great was the slaughter of his host, that for two days the river ran red with the blood of the Saracens. From hence, Pelayo proceeded rapidly to Gijon, which he easily carried by assault. The capture of this important fortress gave him the command of the seaboard, and of the skirts of the mountains. While reposing himself after his victories, the Bishop Oppas was brought in chains before him, and the Christian troops called loudly for the death of that traitor and apostate. But Pelayo recollected that he had been a sacred dignitary of the Church, and regarded him as a scourge in the hand of Heaven for the punishment of Spain. He would not, therefore, suffer violent hands to be laid upon him, but contented himself with placing him where he could no longer work mischief. He accordingly ordered him to be confined in one of the towers of Gijon, with nothing but bread and water for his subsistence. There he remained a prey to the workings of his conscience, which filled his prison with horrid spectres of those who had perished through his crimes. He heard wailings and execrations in the sea-breeze that howled round the tower, and in the roaring of the waves that beat against its foundations; and in a little time he was found dead in his dungeon, hideously distorted, as if he had died in agony and terror.[61] [61] _La Destruycion de España_, part 3. The sacred banner that had been elevated at Covadonga never sank nor receded, but continued to be the beacon of deliverance to Spain. Pelayo went on from conquest to conquest, increasing and confirming his royal power. Having captured the city of Leon, he made it the capital of his kingdom, and took there the title of the King of Leon. He moreover adopted the device of the city for his arms—a blood-red lion rampant, in a silver field. This long continued to be the arms of Spain, until in after times the lion was quartered with the castle, the device of Burgos, capital of Old Castile.