"It is going to be a hard job to get these out, Bertie," Harry said, when they had completed their examination, "and it is lucky for us that the room gradually narrows from sixteen feet wide to two at the other end, and when we stepped it we made it eighty feet long. We need not take up the stones near the rock wall, for the ravine would naturally narrow as it went lower, and the depth would be greatest by the side of the wall of the tunnel."

"Well, we shall soon blow up the stones when we have got the powder."

"I hope so, Bertie; but I see that we shall have difficulty unless these top stones are extraordinarily thick."

Bertie looked surprised. "Why, I should have thought the thicker they were the more difficult to break up."

"Beyond a certain point that would be so. But suppose they are six inches thick, you may take it for granted that underneath there will be rubble, loose stuff, except where any chambers may be built. If we were to bore a hole through this top layer the powder, instead of splitting the stones up, would expend its force among the loose stuff beneath it; and besides, instead of remaining in its place, it might get scattered, and we would then get no explosion at all."

"Then we should only have to make the hole four inches deep, Harry?"

"As a result of which there would only be two inches of tamping over the powder, and this would blow right out, as if from a little mortar, and would have no effect whatever upon the stone. I have no doubt that we shall find some way to get over these difficulties, but it is evident that the work will not be all clear sailing."

"Of course we shall manage it somehow, Harry, even if we have to smash up all the stones with the sledge-hammers Dias will bring us."

"Is breakfast nearly ready, senora? That swim in the sea has given us a prodigious appet.i.te. Did you enjoy it?"

Maria nodded.

"It is very nice, senor; but I should have liked it better if the water had not been so blue. It seems so strange bathing in blue water."

"You will soon get accustomed to it," Bertie laughed. "There are no pools except that one two miles up the valley. Besides, it is much nicer to have a great bathing chamber all to yourself. Here comes Jose!"

"Well, Jose, are the mules all right?" he shouted.

"Yes, but I had difficulty in catching them. They had evidently been frightened by something, and were three miles up the valley with their coats all staring. It must have been either a puma or a jaguar. Of course they must have got wind of him in time; but as, fortunately, they were not tethered, they were able to get away from him."

"I should think he must be up somewhere among the bushes, Jose," Harry said. "We had better go down tonight and see if he returns again. We shall be losing some of the mules if we don't put a stop to his marauding Besides, it will be very dangerous for you, Jose, cutting the wood up there, if he is lurking somewhere. It is fortunate that you escaped yesterday."

"I expect he was on the other side of the ravine, senor; and even if he had not been, the sound of the chopping would have scared him. They will not often attack in the daytime."

When they had finished their breakfast Jose asked what he should do next.

"There is nothing else to do, so it would be as well to take our pickaxes and get some of those brackets out of the walls. We will begin with the other rooms of this floor and leave these here till the last."

"I will come and hold a torch for you, senors," Maria said. "I like to be doing something. I will wash up first, and then I shall have nothing to do till it is time to get ready for dinner. Now I know there is a savage beast about I should not like to go down the ladder."

"There is very little chance of his coming down the rocks," Harry said.

"He is more likely to be lying somewhere on the other side watching the mules."

No move was made until the woman was ready to start. Then they lit two torches. She took one and Bertie the other, while Jose and Harry took two picks. It was hard work, for the brackets were driven far into the pillars and walls. It was necessary to knock away the stones round them to a depth of two or three inches before they could be got out. They worked one at each side of a bracket, relieving each other by turns, and after four hours' work only eighteen brackets had been got out. As far as they could tell by lifting them, the weight was somewhat greater than they had at first supposed. Harry could hold one out in each hand for a minute and a half, Bertie and Jose for a little over half a minute, and they agreed that they must be about twenty pounds each.

By this time their shoulders ached, and it was agreed that they had done a good day's work. For the rest of the day they did nothing but sit on the sill of the window and smoke quietly. The next day's work was similar, and twenty more brackets were got out. Late in the afternoon they saw Dias coming down the steps, and at once went down the ladder to meet him.

"Have you got everything, Dias?"

"I think so, senor, and I can tell you that the mules have had a pretty heavy load to bring back."

"Well, we will go with you at once, Dias, and bring some of the things up. I expect you have had nothing to eat since the morning. Before you do anything else you had better go in. Your wife has been keeping a dish hot for you, as she did not know when you might arrive."

"I shall not be long before I come and help you, senor. I have unsaddled the mules and turned them out to graze."

"It is just as well, Dias, for there is a beast somewhere about that gave them a fright last night. We will get all the eatables up to-night, the powder and drills and hammers we can very well leave till to-morrow morning."

It took them four trips to bring the provisions over, for it required two of them to carry each sack of flour, and indeed all had to give their aid in getting them up the rocky slope at the foot of the wall.

"No one seemed to think it unusual, your taking so large a load, I hope, Dias?" Harry said as they sat down to their evening meal.

"No, senor. The man I bought the powder of was a little surprised at the amount I wanted; but I said that I might be absent many weeks in the mountains, and might want to drive a level in any lode that I might discover. I led him to believe that I had seen a spot in the mountains that gave good indications, and that two of my comrades were waiting there for my return to begin work at it. I sold the llamas to a man who carries goods from Ancon up to Canta, and got the same price that you gave for them."

Harry then told him the work on which he had been engaged since he had been away.

"Of course there is no hurry about the brackets, but as we could do nothing else without the powder and drills, it was just as well to get them out, as otherwise we might have been delayed when we had done our other work. We think that they weigh twenty pounds each, so that altogether they will be worth nearly four thousand pounds. Not a bad start. I am afraid we sha'n't make such quick work down below."

"We shall see," Dias said cheerfully, for now that his fear of the demons had pa.s.sed he was as eager as Harry himself to begin the search for the treasure.

"Has Maria seen any more bats?"

"Yes, she has seen some more bats," his wife said, "but no demons.

Dias, what do you think? Don Harry suggested that we might eat the bats."

"I have heard of their being eaten," Dias said, "and a man who ate them raw told me that he had never enjoyed anything more. But I should not like to try it myself, unless I were driven to it as he was."

"How was that, Dias?"

"He was a muleteer, senor, and was up in the mountains. He had a cargo of silver on his mule, and during the day he had seen some men who he doubted not were brigands on the top of the ravine he pa.s.sed through.

He knew of a cavern where he had once taken refuge with the animals during a storm. It lay on the hillside some twenty or thirty yards away from the road. The entrance was hidden by bushes, and he had first noticed it by seeing a bear come out as he was pa.s.sing along. He had his pistols, and thought that it was better to risk meeting a bear than a brigand. He arrived opposite the cave just as it became dark, and at once led the mules up there. He first lighted a torch--the muleteers always carry these with them--and then went in with his pistols ready, but there were no signs of a bear anywhere near the entrance.

"He drove the mules in and put out his torch. The entrance had been only wide enough for the laden animals to pa.s.s, but it widened out a great deal inside. He took off the loads, piled them up in the narrow part to make a barricade, and then sat down at the entrance and listened. He soon heard five or six men come down the road talking.

They were walking fast, and one was saying that he could not be more than half a mile ahead, and that they should soon catch him. When they had gone, he went some distance in the cave and relighted his torch. He went on and on. The cave was a very large one, and when he had gone, as he thought, four or five hundred yards, it branched off into three. He took the middle one, and followed it for a long way. At last it opened into a large chamber from which there were several pa.s.sages. Here he found a large number of things that had evidently been stolen from muleteers. There were at least a dozen mule loads of silver; goods of all kinds that had been brought up from the coast; the ashes of fires, and a great many bones and skins of llamas, and some sacks of flour.

"He thought he would now return to the mules; but apparently he entered the wrong pa.s.sage, for he went on till he felt sure he ought to be in the chamber where he had left the animals, and he was turning to go back when he tripped over a stone and fell, and his torch went out.

Then he felt in his pocket for his box of matches, and to his horror found that it had gone. It must have dropped out when he was examining the pa.s.sages. He did not think much of it at first, but he had pa.s.sed several openings on his way, and in the dark he probably turned down one of these. At any rate he lost his way somehow, and wandered about, he thinks, for hours; but it might have been much less, for he told me that he quite lost his head. At last he came out into a place where he could only feel the rock on one side of him, and knew that he must be in a large chamber.

"Looking up he saw, to his joy, a faint light, and moving a little, caught sight of a star. He was utterly worn out, and threw himself down. He was awakened by a strange rustling sound, and looking up saw that daylight was breaking, and that a stream of bats was pouring in through a hole, which was about three feet wide. He made several efforts to climb up to it, but failed. The bats hung thickly from every projecting point in the rocks. He hurt himself badly in one of the attempts to get up, and twisted his foot. All day he lay there. Then the idea struck him that he would kill a bat, cut it open, and use it as a poultice to his foot. The creatures did not move when he touched them, and he cut off the head of one of them and split it open. He did this three or four times during the day, and felt that the application was easing the pain of his ankle.

"When it became dusk the bats flew out again, and he knew his only chance was to keep his ankle perfectly rested. In the morning he killed some more bats. He was by this time tortured with thirst, and sucked the blood of one of them, and in the afternoon ate one raw. Another night pa.s.sed, and in the morning he felt so much better that he could make another trial. He ate another bat to give him strength, and in the middle of the day made a fresh attempt. He had while lying there carefully examined the wall of rock, at the top of which was the opening, and had made up his mind at what point would be best to try.

This time he succeeded. He made his way down the hillside, and found that he was a quarter of a mile higher up the pa.s.s than the spot at which he had left the mules. He hobbled down, and to his delight found his animals still in the cavern.

"He had when he first got there opened their sack of grain in order to ensure their keeping quiet. There was still some remaining at the bottom. He lost no time in loading them and leading them out, and made his way down the pa.s.s without seeing anything of the robbers.

Afterwards he went back there with a good supply of torches, found his way to the cave, and brought down two mule-loads of silver. Gradually he brought the rest of the goods down, and today he is a rich man."

"Well, I think under those circ.u.mstances, Dias, I would have eaten bats myself. It was certainly a clever idea of his to convert them into poultices, though the general opinion is that cold bandages are the best for a sprained ankle."

Then they discussed their plans for the next day. "I know nothing about blasting, senor. You give me instructions, and I will do my best to carry them out; but it is useless for me to talk of what I know nothing about."

"There is a lot of common sense in that, and yet in every work, Dias, sometimes while a skilled man is puzzling how to do a thing a looker-on will suggest a satisfactory plan. That treasure has been buried there I have no doubt whatever. They would never have gone to the labour of paving those cellars as carefully as they have done unless for some special purpose. The floor was undoubtedly made when the house was built, and if we find treasure-chambers there they will be those of the old people. Of course they may have been discovered by the Incas, and when they in turn wanted to bury treasure this place might occur to them as being particularly well fitted to escape search by Spaniards.

However, to-morrow we shall learn something more about them. The first thing to do in the morning, when we have brought up the rest of the goods, is to sweep the floors of those chambers carefully. When we have done that we will determine where to set to work."