He observed that the infantry had separated into two parties, one of which had left the road and was marching away from them towards the post on the other side of the valley, while the other and larger half was advancing towards them. The cavalry followed the latter, but halted when the hills began to rise more steeply out of the plain. The smaller portion of the infantry was evidently going to try to draw the Greeks from the far post down into the plain, while the cavalry who stayed at the bottom of the pass below Valtetzi would hinder help being sent from there. This Petrobey noticed with a pleasant smile. The others knew exactly what to do, and meantime the force which would assault Valtetzi would be weakened by more than a quarter of its men. Most of it, however, consisted of Albanian mercenaries who were largely in Turkish pay, and who, as he well knew, earned their pay, for they were men of the hills and the open air, who could use a sword and were masters of their limbs. Each hundred men in the Greek camp--that is to say, twenty-five of these groups of four--were under the orders of a captain, who in turn was under the direction of Petrobey, and in all about two thousand men lined the walls. Of the remainder, fifty were employed in distributing ammunition, and were in readiness to bring fresh supplies to the defenders; a hundred more were ready to take the place of any who might be killed at their posts; and the rest, some eight hundred men, were standing under arms on the small parade-ground in the centre of the camp, under command of Nicholas. They would not, however, according to the scheme he and Petrobey had devised, be required just yet, and he told them to pile arms and fall out, but not to leave the ground so that they could not be recalled in a moment if wanted. Mitsos was in attendance on Nicholas, and Yanni stood by Petrobey ready to take his orders to any part of the camp. An hour elapsed before the Albanian infantry appeared above the ridge some five hundred yards off, and still in the Greek camp there was perfect silence. Then, opening out, they advanced at a double, intending evidently to try to storm the place. But they had clearly not known how completely it had been fortified, and while they were still about four hundred yards off they halted at a word of command and sheltered among the big bowlders that strewed the hill-side. Still, in the Greek camp there was no sound or movement, only Yanni ran across to Nicholas with the order "Be ready," and he called his men up and they stood in line with their arms. Then a word was shouted by the commander of the advancing troop, and Petrobey saw the Albanians all massing behind a small spur of hill about a quarter of a mile away, where they were hidden from sight.