"The brave Antonio, is it not?" he said with a smile.

"Sí, Señor," replied the man.

"I am glad to see you engaged in such excellent work."

Passing on, Jack was introduced by Don Cristobal to Pablo Quintanar, the chief of the guerrilleros, and learnt that the man, though subordinate to the commander of the district, expected a certain amount of consideration as head of an independent party of peasant-warriors. Jack was not taken with the man's appearance. He had a sinister look and shifty eyes, and replied in curt ungenial tones to the few words addressed to him.

"Antonio, the man you spoke to just now," added Don Cristobal, "is second in command of the guerrilleros, and a much better man, in my opinion, than the chief. You appear to know him, Señor?"

"I met him once," was Jack's brief reply.

Having made acquaintance with his corps, and finding that the French had not yet commenced their morning movements, Jack proceeded to complete his survey of the position. Beyond the River Huerba he could now clearly see the long rows of French trenches, the parallels cut here and there by a series of zigzags constructed with incredible labour to secure the besiegers' approach to the walls. The French had actually made good their position on the near side of the river, immediately beneath the wall, towards Santa Engracia, but they had hitherto forborne to press their advantage, the height of the bank rendering it difficult for them to storm the ramparts in that quarter, and at the same time preventing them from blowing them up by mines.

It was clear that no French attack was to be expected from the Porta Quemada side of his district, for in order to reach him the enemy would have to push their way through some hundreds of yards of streets held by Don Casimir, who had proved himself a very capable leader. But on the Santa Engracia side he was exposed to what was plainly the enemy's principal attack. Their aim was obviously to reach the Coso, and to connect the wedge they were driving into the city in this quarter with the wedge already inserted at San Agustin.

They had made considerable progress since the capture of the Santa Engracia convent four days before. They treated each block of houses as a miniature fortress. There was no attempt to carry it by storm until the defences had been attacked by sap and mine. As soon as a house was blown up they rushed in and occupied the ruins, where they entrenched themselves with bales of wool, gabions, and sacks of earth, and began to drive mines under the next block.

Anxious to see for himself something of their method, Jack entered a house next to one recently blown up, and, ascending to the top story, peeped through a loop-hole pierced in the party wall. The roof of the next house had fallen in. Some charred beams were still smouldering. Here and there a tongue of flame licked the débris, and as the breeze blew in fitful gusts, dense clouds of smoke rose into the air.