With shouts of "Dhia agus ar duthaich! Bigh Hamish gu bragh!" ("God and our country! King James for ever!") the MacGregors burst into the fort; but, unknown to them, there was, an inner gate of iron, which secured the passage to the barracks. This, Captain Clifford, the officer commanding the main guard, instantly shut and secured; and through the bars of it his men opened a fire of musketry, that in five minutes brought the whole garrison under arms. Swinging ponderous sledge-hammers, Rob Roy, MacAleister, and others, strove in vain to beat or break down the malleable iron bars of this unexpected barrier, through which the musketry flashed incessantly, and many of their men were falling killed or wounded, while others returned the fire with their long guns, which they discharged through the barrier right into the faces of the redcoats. The outworks of Inversnaid were completely in possession of the MacGregors, but the inner wall, by its height, defied their efforts, and Rob knew that from it and the barrack windows ere long there would be opened a fire of musketry, which would decimate and destroy his men, unless the heart of the place was entered, while consternation existed in the garrison. Already the windows were full of lights, as the soldiers were dressing and arming in haste. Sharply and rapidly the long roll was beaten on the drum, and scores of voices were heard in clamour and confusion within, while without rang the wild cheers of his men and the pipes of Alpine, who played,-- Oh that I had _three_ hands,-- One for the sword and two for the pipe! The red explosion of muskets and pistols echoed on both sides of the barrier, which Captain Clifford, a resolute officer, who shared with his men a hatred and fear of the Celts, defended with resolution; expecting only extermination if taken, the King's Fusiliers acted with great vigour and courage. From an angle of the inner wall, which his men were now rapidly lining, Major Huske shot off a number of lighted shells or bombs from a little brass howitzer. These soared through the air, forming long and dazzling arcs of light, which enabled his Fusiliers to see the number and disposition of the attacking force, and to direct their fire upon the tumultuous mass of men wedged below the walls, where the long blades of their brandished swords seemed to flash sharply up from a sea of blue bonnets, red tartans, and round targets. The soldiers, in their square-skirted red coats, white cross-belts, and three-cornered hats, were rapidly lining all the walls, firing at random as they came upon the platforms, till Huske lighted three _cercles goudronnes_, by the blaze of which they directed their aim. These are old gunmatches, pieces of rope dipped in pitch and tar, made up in the form of a circle, to be placed upon ramparts during a night attack.