"No," said the captain, "it could not have been a Rackbird, but who he was, and where he has gone, is beyond my comprehension."

CHAPTER XXII

A PACK-MULE

When Captain Horn felt quite sure that it was not Ralph, that it was not Cheditafa, that it was not a Rackbird, who had visited the treasure mound, he stood and reflected. What had happened was a great misfortune,—possibly it was a great danger,—but it was no use standing there thinking about it. His reason could not help him; it had done for him all that it could, and it would be foolish to waste time in looking for the man, for it was plain enough that he had gone away. Of course, he had taken some gold with him, but that did not matter much. The danger was that he or others might come back for more, but this could not be prevented, and it was needless to consider it. The captain had come to this deserted shore for a purpose, and it was his duty, without loss of time, to go to work and carry out that purpose. If in any way he should be interfered with, he would meet that interference as well as he could, but until it came he would go on with his work. Having come to this conclusion, he got over the wall, lighted his lantern, and proceeded to the mound.

On his way he passed the tin cup, which he had forgotten to pick up, but now he merely kicked it out of the way. "If the man comes back," he thought, "he knows the way. There is no need of concealing anything."

When the captain had reached the top of the mound, he moved the stone lid so that the aperture was entirely uncovered. Then he looked down upon the mass of dull yellow bars. He could not perceive any apparent diminution of their numbers.

"He must have filled his pockets," the captain thought, "and so full that some of them dropped out. Well, let him go, and if he ventures back here, we shall have it out between us. In the meantime, I will do what I can."

The captain now took from the pocket of his jacket two small canvas bags, which he had had made for this purpose, and proceeded to fill one of them with the gold bars, lifting the bag, every now and then, to try its weight. When he thought it heavy enough, he tied up the end very firmly, and then packed the other, as nearly as possible, to the same extent. Then he got down, and laying one of the bags over each shoulder, he walked about to see if he could easily bear their weight.

"That is about right," he said to himself. "I will count them when I take them out." Then, putting them down, he went up for his lantern. He was about to close the lid of the mound, but he reflected that this would be of no use. It had been open nobody knew how long, and might as well remain so. He was coming back as often as he could, and it would be a tax upon his strength to lift that heavy lid every time. So he left the treasures of the Incas open to the air under the black roof of the cavern, and, with his lantern in his hand and a bag of gold on each shoulder, he left the cave of the lake, and then, concealing his lantern, he walked down to the sea.

Before he reached it he had thoroughly scanned the ocean, but not a sign of a ship could be seen. Walking along the sands, and keeping, as before, close to the curving line of water thrown up by the surf, he said to himself: