"Then the Spanish under Fernando Cortes are here!" exclaimed Roger, in some astonishment, for this was the first intimation he had had of that fact. "Did you ask how long they had been in Mexico, and what success they had had?"

"They were here some months, and have been gone a little while, my lord," was the answer. "The Mexicans rose, and drove them out. Now they are awaiting their return."

"And will they submit?" demanded Roger, anxiously. "For then we shall become captives of the Spaniards, and that would be worse even than this."

There was a doubting look in Tamba's eyes, and for a little while he hesitated whether to tell his young master of the critical position in which they were. At length he summoned courage, and spoke.

"To be a Spanish captive again could hardly be worse than our fate now," he said softly. "My lord is now a prisoner in the hands of the Mexicans, and he knows nothing of these people, save that they live in the centre of a lake. He does not know of their cruelty, and of their wicked practices."

Roger was entirely ignorant, to speak the truth, and, more than that, was amazed at the size of Mexico, and the huge numbers of people he saw about when he looked down from the pass, and the fine houses in which they lived. Till then he had hardly expected the natives in this new part to be much different from those to be seen in Cuba. But he was to learn much in the next few hours, and before he departed from Mexico was to know that these Aztecs were in many ways highly civilized, practising many of the higher arts and crafts, learned in picture writing, and able engineers. Alongside these attainments, Roger learned that they had certain practices which were strangely incongruous in a people so advanced in civilization, and that the nation, from the highest downwards, was swayed by the cruellest superstitions and religious rites. He was now to hear of one of the latter.

"Their wicked practices!" he gasped. "What do you mean? They looked peaceful enough, and rather melancholy, I thought. What are these practices?"

"The sacrifice, master," said Tamba, mournfully. "These Mexicans have many gods to whom they look, and whom they seek to appease, some with gifts of meat and cereals, others with the sacrifice of animals, while there is one in particular, the mighty war god, named Huitzilopochtli, to whom they offer men."

"Men! They sacrifice human beings!" exclaimed Roger, in disgust and dismay. "Then we——"

"Are reserved for that fate; and all these others, master. They will kill us so that we may bring fortune to them in their wars, and aid them against the Spaniards."