At these words, an arrow, winged from a hand behind Cressingham, flew directly to the unvisored face of Wallace, but it struck too high, and ringing against his helmet fell to the ground. "Treachery!" resounded from every Scottish lip; while indignant at so villainous a rupture of the parley, every bow was drawn to the head; and a flight of arrows, armed with retribution, flew toward the battlements. All hands were now at work, to bring the towers to the wall; and mounting on them, while the archers by their rapid showers drove the men from the ramparts, soldiers below, with pickaxes, dug into the wall to make a breach. Cressingham began to fear that his boasted auxiliaries might arrive too late; but, determining to gain time at least, he shot flights of darts, and large stones, from a thousand engines; also discharged burning combustibles over the ramparts, in hopes of setting fire to the enemy's attacking machines. But all his promptitude proved of no effect. The walls were giving way in parts, and Wallace was mounting by scaling-ladders, and clasping the parapets with bridges from his towers. Driven to extremity, Cressingham resolved to try the attachment of the Scots for Lord Mar; and even at the moment when their chief had seized the barbican and outer ballium, this sanguinary politician ordered the imprisoned earl to be brought out upon the wall of the inner ballia. A rope was round his neck, which was instantly run through a groove, that projected from the nearest tower. At this sight, horror froze the ardent blood of Wallace. But the intrepid earl, descrying his friend on the ladder which might soon carry him to the summit of the battlement, exclaimed, "Forward! Let not my span of life stand between my country and this glorious day for Scotland's freedom!" "Execute the sentence!" cried the infuriate Cressingham. At these words, Murray and Edwin precipitated themselves upon the ramparts, and mowed down all before them, in a direction toward their uncle. The lieutenant who held the cord, aware of the impolicy of the cruel mandate, hesitated to fulfill it; and now, fearing a rescue from the impetuous Scots, hurried his victim off the works, back to his prison. Meanwhile, Cressingham perceiving that all would be lost should he suffer the enemy to gain this wall also, sent such numbers upon the brave Scots who had followed the cousins, that, overcoming some, and repelling others, they threw Murray, with a sudden shock, over the ramparts. Edwin was surrounded; and his successful adversaries were bearing him off, struggling and bleeding, when Wallace, springing like a lioness on hunters carrying away her young, rushed in singly amongst them. He seized Edwin; and while his falchion flashed terrible threatenings in their eyes, with a backward step he fought his passage to one of the wooden towers he had fastened to the wall. Cressingham, being wounded in the head, commanded a parley to be sounded.