To gain time, and then steal another march on Cope, was even more important to the Prince than to his enemies. There were weak points in the wall that might be attacked. The chief gate of the city, the Netherbow, lay midway up the High Street, dividing the real borough of Edinburgh from the Canongate; on each side of this gate the wall descended sharply down hill, running along Leith Wynd on the north side and St. Mary's Wynd on the south. The houses of the latter--Edinburgh houses numbering their ten or twelve stories--were actually built on to the wall. By entering one of these, active and determined men might clear the wall by a fire of musketry from the upper windows, and then make an escalade. Another weak point was at the foot of Leith Wynd, where the wall met the Norloch. About midnight Locheil and five hundred of his men started to make a night attack. They were guided by Mr. Murray of Broughton (the Prince's secretary, afterwards a traitor), who had been a student in Edinburgh and knew the town well. To avoid chance shots from the guns of the Castle, they made a wide circle round the town, but so still was the night that across the city they could hear the watches called in the distant fortress. Swift and silent as Red Indians, the Highlanders marched in the shadow cast by the high, dark houses of the suburbs without arousing the sleeping inmates. They could see cannons on the walls, but no sentinels were visible. They determined to try fraud before resorting to force. Twenty Camerons placed themselves in hiding on each side of the gate, sixty stood in the dark recess of the Wynd, the rest were at the bottom of the slope. One of the number, disguised as the servant of an English officer of dragoons, knocked loudly at the gate, demanding admission. The watch refused to open and threatened to fire. So this stratagem was not successful. Already the dawn was beginning to break, and a council was held among the leaders of the band in low hurried whispers. They were deliberating whether they should not retreat, when all at once a heavy rumbling noise from within the city broke the silence of the night. The hackney coach before mentioned had deposited its load of deputies at the council chamber and was returning to its stable-yard in the Canongate. A word to the watchmen within and the gates swung on their heavy hinges. In rushed the body of Camerons, secured the bewildered watchmen, and in a few minutes had seized the city guard-house and disarmed the soldiers. Then they struck up the wild pibroch 'We'll awa' to Sheriffmuir to haud the Whigs in order,' and startled citizens rushing to their windows saw in the dim twilight the streets filled with plaids and bonnets. The conquerors visited all the outposts as quietly as if they were troops relieving guard. A citizen strolling along by the wall early next morning found a Highland soldier astride on one of the cannons, 'Surely