"No, that is true! But occasionally there must be some tribes of Indians about here, and they would be sure to hit upon it. Between the clearing and the beginning of this broad road it is but four miles, and the tracks seemed pretty well defined—clear enough at all events, to guide anyone hither. Once in this avenue, and it is easy to strike the city—as now."

They had emerged suddenly into a vast space, built over with mansions, palaces, temples, and mighty walls. A pyramid of earth, surmounted by a ruined teocalli, was placed in the centre of the city and the wide streets shot off from this omphalos in a similar way to those of Totatzine. In fact, on exploring the city thoroughly, Jack came to the conclusion that those who had built Totatzine had also constructed this place. The plan was precisely the same, and, judging from the massive buildings, the carven façades of the walls, the broad terraces, and the enormous flights of steps, it must have been a populous place of some importance.

"Judging from what we see, I think it must be a royal city," said Philip, looking awestruck at these colossal works of the dead. "Here, perchance, the king had his seat, and the secret way was constructed from this place to the sacred city of Totatzine, where the god Huitzilopochtli had his shrine."

"At all events, I have no doubt that this city is well known to the Indians of the present day," replied Jack, decisively; "though doubtless the entrance to the cañon road, choked up by rubbish, has escaped their notice. Did they know of its existence, Ixtlilxochitli would have closed up the narrow track leading round the precipice into the interior wall."

It was now between four and five o'clock, so they had not much time to lose if they desired to find the entrance before sunset. The engine, in charge of the driver, had been left in the clearing, Jack judging it would be quite safe there, as no Indians seemed to be in the vicinity. They had brought provisions with them, and if it was necessary, could camp out in the clearing till dawn, when they could go back to Cuavaca to bring the troops.

Pepe marched forward into the central square, and then led them towards the extreme end of the city. Here a surprise awaited them, for they found that the town was built against a vast cliff, some eighty or ninety feet in height. A lengthy temple, reached by a flight of steps, was cut out of the solid rock, with ranges of pillars massive in the design and architecture.

"Wonderful!" cried Philip, in amazement, as he surveyed the Cyclopean ruins; "these temples are like those of Petra. What great men must they have been who built such shrines! A great civilisation once flourished here, Jack."

"Without doubt," said Tim, who was much impressed by these grand remains; "these Toltecs, or whatever you call them, were greater than the Aztecs. Cortes, to my mind, found a vastly inferior civilisation than had been when these cities were built."

"Carajo, Señor Correspoñsal!" cried Rafael, overhearing his remarks; "we have nothing like this in Tlatonac."

"Nor are likely to have," said Peter, dryly; "the Toltecs were greater builders than the Spaniards."