"Very well, Dias, you may count upon my return long before the three days are up. Now, in the first place, take me to the point from which I can have a view of the castle."

"We have had a long journey to-day, señor, and it is two hours' journey from here. We had better rest and go in the morning."

Harry nodded.

"We will be off early. You say it is ten miles from the spot where we shall see it. If we start at daybreak I can be there before noon, which will give me plenty of time for a first look round the place. We have got some torches left. I shall want them, for possibly there may be some chambers underground into which we shall have to penetrate. We may take it as certain that, whether the old people hid a great treasure from the Incas, or the Incas hid one from the Spaniards, they did not leave it about in rooms, but stowed it away in vaults like those we saw at Pachacamac, and these will certainly want a lot of looking for."

"I will help you look, señor, and will work there as long as you like in the search, if you return and tell me that you have seen and heard nothing of the demons that are said to be there. I am not afraid of danger when I know that it is men that we have to do with. But I dread being strangled and torn, as the legends say that all who have ventured here have been."

"But according to your own account, Dias," Bertie laughed, "that was long, long ago, and the demons may have got tired of guarding a place that no one came near, and have gone elsewhere in search of victims."

Dias shook his head gravely. In spite of his life as a muleteer, and his acquaintance with Englishmen, he was as superstitious as the rest of his countrymen. The nominal Christianity enforced by the Spaniards upon the natives was but skin-deep, and thus they clung with undying fidelity to the superstitions and traditions that had been handed down from generation to generation, and had been preserved with a tenacity that even the tortures of the Spaniards had failed to shake. The failure to obtain the gold which they confidently expected to find in the valley had still further strengthened his belief that it was destined that these treasures should never be discovered; and although when there he had listened gravely to Harry's explanations of the manner in which the lake had been formed, his own conviction that all this was the work of demons had been unshaken. If, then, a spot, which even the tradition handed down to him had in no way connected with the guardianship of demons, was so firmly watched, how much more must this be so at a spot which all legends agreed was inhabited by demons, and had been the scene of so many executions by them of those who had ventured near.

As Bertie and his brother sat together by the fire that evening after the others had retired to rest, they talked long over the matter; for just as when they had approached the gold valley, their excitement had increased with every day's journey. Harry felt that this was his last chance, his only hope of gaining the object for which he had left England.

"It is strange, Harry," Bertie said, "that the natives should believe these absurd stories about demons. Dias seems, in every other way, as sensible a fellow as one can want to meet, but in this respect he is as bad as any of them."

"It is not extraordinary, Bertie, if you remember that it is not so very long ago since people at home believed in witches who sailed through the air to take part in diabolic ceremonies, and brought about the death of anyone by sticking pins into a little waxen image, and that even now the peasantry in out-of-the-way parts of the country still hold that some old women bewitch cows, and prevent milk turning into butter however long they may continue churning. Fairy superstitions have not quite disappeared, and the belief in ghosts is very wide-spread.