"No. He trusts me too much. Besides, he would not care if he did guess we were plotting, Señor, thinking, as he does, that I know not the secret way." "And you do know it?" Cocom looked around and saw nobody. Then he turned towards Jack, and nodded significantly. "Yes, Señor, I do know it." "Bueno! And when----?" "Another time, Don Juan. We have already spoken too long. Let us resume our examination of the sacred city. It is not wise to be incautious. Folly is loud of speech, but Wisdom is silent." Jack acquiesced in this view of the matter, and they walked on. He was greatly interested in all he saw around him, as it is not given to everyone to view a great aboriginal civilisation in its full glory. But for the horrible fear he had of failing to escape, and thus run the risk of being sacrificed to the war-god, he would have been quite fascinated by this extraordinary place. Always a bit of an archæologist, he viewed with enthusiasm these giant palaces, these massive temples--works of a great race, still as fresh under the blue tropic sky of to-day as when they were first reared in the dim past. When Europe was a land of savages, this city was built; it rose in its splendour while Greece was in her glory and Rome was not. Back, many ages back before Christ; before David, perchance before Abraham, these superb edifices rested majestically in this smiling valley. Still were they inhabited, still were they the home of a race, of a religion--the seat of a barbaric civilisation, the oracle of a faith, as they had been in their pristine glory. The empire of Montezuma had fallen in Mexico, the Incas were now but a name in Peru, gone were the Toltecs, scattered the Mayas, yet the buried city of Totatzine, safe in the midst of primeval forests, endured still, and would endure until that fatal day, which would surely come, when the aboriginal race would silently retreat before the conquering forces of civilisation. Here was the last stronghold of the old gods, driven from the table-lands of Anahuac; here smoked anew those altars overturned by the Conquistadores; here shrieked the victim on the terrible stone of sacrifice; and here was the shrine of the famous Opal, the Chalchuih Tlatonac, the very mention of which thrilled the hearts of all far and wide with superstitious dread.