“Oh! he knows you?”

“He does; though I’m not sure he recognised me in passing, as I did him. Odd enough, his being there just then. He was corporal in a company I once commanded, and I believe liked me as his captain. He’s an old schemer, though; has turned his coat times beyond counting; and just as well there’s been no call for trusting him. He’ll catch it for letting us slip past without challenge; and serve him right, wearing the colours he now does. Ha! they’ve waked up at last! I was expecting that.”

It was the first gun at the citadel which called forth these exclamations, soon followed by the ding-dong of the city bells.

Carrai!” he continued, “we’re no doubt being pursued now, and by cavalry; some of those we saw in the procession. It begins to look bad. Still, with so much start, and this fine pair of frisones, I’ve not much fear of their overtaking us, till we reach the point I’m making for; unless, indeed—”

“Unless what?” asked Kearney, seeing he had interrupted himself, and was looking out apprehensively.

“That! There’s your answer,” said the Mexican, pointing to a puff of smoke that had just shot out from the summit of an isolated hill on which were batteries and buildings. “Chapultepec—a gun!” he added, and the bang came instantly after.

“We’ll have it hot enough now,” he continued, in a tone telling of alarm. “There’s sure to be cavalry up yonder. If they’re cleverly led, and know which way to take, they may head us off yet, in spite of all we can do. Lay on the whip,” he shouted out to the coachman.

And the whip was laid on, till the horses galloped faster than ever, leaving behind a cloud of dust, which extended back for more than a mile.

The road they were on was the direct route to San Angel; and through this village Rivas had intended going, as he had no reason to believe there were troops stationed in it. But Chapultepec was nearer to it than the point where they themselves were, and cavalry now starting from the latter could easily reach San Angel before them. But there was a branch road leading to Coyoacan, and as that would give them some advantage, he determined on taking it.

And now another gun at the citadel, with the response from Chapultepec, and, soon after, the third booming from both. But meanwhile, something seen at the castle-crowned hill which deepened the anxious expression on the face of the Mexican.