The man was accordingly liberated; and Bruce, during that same day, having resolved to perform by stratagem what seemed to be impossible by the fair play of arms, took with him Sir James Douglas, and went to reconnoitre. Great and even marvellous as was the courage of these far-famed assertors of their country's freedom, it may be doubted whether their genius for daring and successful stratagem did not excel the chivalrous spirit of fair-fighting by which they were actuated to perform deeds of arms that have made the whole world ring with their fame. The capture of the peel or castle of Linlithgow, and that of Edinburgh, afterwards performed, were the most cunningly-devised pieces of military stratagem that had ever been witnessed; and the work of old Polyænus on the warlike acts of the strategists of Greece exhibits nothing that can be compared to them. Bruce had already exhibited this talent for scheming, in the affairs of Lindon Hill and Cruachan Ben; but his powers in this respect were yet to be developed on a grander scale, and as it were by gradation, till the final triumph of Bannockburn should establish his fame for ever. The capture of Perth was one of those intermediate and probationary trials that were fitting the great master for that final and glorious display of all his talents for war; but, small as it was in comparison of what followed, it exhibited perhaps as much of his peculiar genius as had yet been shown. Accompanied by Sir James, he went, during the hours of twilight, up to the margin of the fosse. "We must know the depth cf this miniature Styx," he said to his companion. "But we have no measuring-rods," replied Sir James.