With his mind set at rest upon the subject of the English alliance, William prepared to bend all his remaining energies to the suppression of the dangerous rebellion in the north. About the middle of June a considerable force was dispatched to the scene of action, the prince of Scotland accompanying the army to prove himself worthy of his golden spurs; and the reserve was to have followed by easy marches, under the immediate orders of the king, when its departure was arrested by the welcome intelligence of the capture of the head of the rebellion. The Earl of Fife, during a temporary absence from his command, left the province under the charge of the Justiciary, William Comyn, Earl of Buchan, into whose hands the adherents of Mac William, terror-stricken apparently at the magnitude of the royal preparations, had just surrendered their leader. The earl had already reached Kincardine with his prisoner, whom he was in haste to present to William before death robbed him of his prize--for Godfrey had resolutely refused all nourishment since his capture--when he was met by a significant message from the king, that he had no desire to see his enemy; and the unfortunate Mac William was at once beheaded, and hung up by the feet, lest starvation should anticipate his doom.[505] [Sidenote: A. D. 1213] The ensuing winter once more found John upon the Scottish frontier. Whilst on the march in the preceding summer to repress the revolt of Llewellyn, he had received letters from William, as well as from his own natural daughter Joanna, the wife of the Welsh prince, warning him against the intentions of his own barons, if he involved himself in the intricacies of a mountain warfare in Wales.[506] The coincidence of the arrival of similar warnings from quarters so far apart, aroused his fears lest the intelligence should be true; and returning in haste to London, he sent to his principal barons, demanding hostages for their allegiance and good faith. All obeyed the royal command except Eustace de Vesci and Robert Fitz Walter; the former, too deeply implicated apparently to entrust himself within the power of John, at once seeking refuge with his father-in-law in Scotland. The flight of De Vesci was amongst the causes which brought John to the north, for it appears that he had already written to William to claim the fugitive as a traitor. Norham, as usual, was the place chosen for the conference; but William, who had been for some time detained at Newbattle by another severe attack of illness, was unable to proceed farther than Haddington; and John, who had every reason for desiring, at this period of his reign, to draw still closer the bonds of union between himself and his fellow king, earnestly adjured him to depute the young Prince Alexander in his place, holding out magnificent promises to induce compliance. The aged king was inclined to send his son, some of his advisers agreeing with him; but the majority of his council strongly opposed the project,