These were allowed to enter the gorge, and to follow it for a distance of a hundred yards, to a point where the sides were approached to their nearest point.

Then, from a parapet of rock piled across the ravine came a volley of musketry; and, simultaneously, from the heights of either side great stones came crashing down.

Such of the party as did not fall at the first discharge fired a volley at their invisible assailants, and then hurried back to the main body.
It was now clear that fighting, and that of a serious character, was to be undertaken.

The Spanish commander rapidly reconnoitered the position; and saw that here, at least, no flanking movement was possible.

He therefore ordered his men to advance, for a direct attack.