The king, having received the answer of the insurgent chiefs, advanced on the 13th of October to the Yorkist camp, and made proclamation, that whoever abandoned the duke should have the royal pardon. Though this appeared to be without effect, the king's army did not commence the attack. Indeed, the Yorkist ranks were most imposing, and the duke's guns wrought considerable havoc in the Lancastrian lines. Observing the formidable attitude of his foes, the king resolved to delay the assault until the morrow; and, ere the sun again shone, an unexpected incident had changed the face of matters, and thrown the Yorkists into utter confusion. Among those who heard the king's proclamation was Andrew Trollope, captain of the veterans whom Warwick had brought from Calais. This mighty man-at-arms had served long in the French wars, and cared not to draw his sword against the son of the Conqueror of Agincourt. After listening to the king's offers of pardon, and considering the consequences of refusing them, Trollope resolved upon deserting; and, at dead of night, he quietly carried off the Calais troops, and making for the royal camp, revealed the whole of York's plans. When morning dawned, and Trollope's treachery was discovered, the adherents of the White Rose were in dismay and consternation. Every man became suspicious of his neighbor; and the duke was driven to the conclusion that he must submit to circumstances. No prospect of safety appearing but in flight, York, with his second son, the ill-fated Earl of Rutland, departed into Wales, and thence went to Ireland; while Salisbury and Warwick, with the duke's eldest son, Edward, escaped to Devonshire, bought a ship at Exmouth, sailed to Guernsey, and then passed over to Calais. The king, on finding that his enemies had fled, became very bold; and having spoiled the town and castle of Ludlow, and taken the Duchess of York prisoner, he called a Parliament. As measures were to be taken to extinguish the Yorkists, no temporal peer, unless known as a stanch adherent of the Red Rose, received a summons; and Coventry was selected as the scene of revenge; for, since the unfortunate result of the Commission at Guildhall, the queen looked upon London as no place for the execution of those projects on which she had set her heart. Away from the metropolis, however, Margaret found herself in a position to do as she pleased; and at Coventry Bloreheath was fearfully avenged. With little regard to law, and still less regard to prudence, the most violent courses were pursued: York, Salisbury, Warwick, and their friends, were declared traitors; and their estates, being confiscated, were bestowed on the queen's favorites. The chiefs of the White Rose appeared utterly ruined; and England was once more at the feet of "The Foreign Woman." CHAPTER X. THE BATTLE OF NORTHAMPTON.