The main army of the insurgents lay, as they knew, across the range to the southwest of the town. The forces they were now headed for formed the victorious army of the north. It was by effecting a junction of these two forces at the very walls, so to speak, of Boca del Sierras that General de Guzman hoped to effect the capitulation of that city. What had become of the government forces, which the army before them had scattered, no one knew. It was supposed, however, that their officers were trying to reassemble their demoralized troops somewhere back in the jungles to the north.

“It wouldn’t take a large force to defend this road against an army,” observed Ned, as they pursued their way along the thoroughfare, which was in places literally hewn out of the cliff face.

“No,” agreed the midshipman, “but as I understand it the government fears that the insurgents’ navy—or rather the ships they captured from the government—may bombard the city from seaward at the same time the land forces make their attack. This would inevitably accomplish its downfall.”

“Not much doubt of that,” agreed Stanley. “If only the government had some boats, they could bottle up the insurgent fleet somewhere, and then go ahead and drive out the troops all around.”

“That’s it,” assented Stark, “but at present the government doesn’t know, and can’t find out, where the dickens the insurgents have hidden their fleet. They’d give a whole lot to know, I guess.”

“I reckon so, sir,” agreed Stanley, with a short laugh.

For some ten minutes more they walked on in silence. Then suddenly around a sharp curve in the road a black object came into view.

“A gun!” exclaimed Herc.

“Guns,” corrected Ned, as his eyes fell on several more of the field pieces commanding the road from points of vantage dug out high upon the cliff side.

“No danger of the government making a sortie up this road,” remarked the midshipman. “With all that artillery those fellows could hold anything.”