The captain shook his head. "Don't be in such a hurry," he said. "It will not be an easy job to open that mound, and we shall need the help of the blackies, as you call them, if we do it at all."
"Do it at all!" cried Ralph. "I'll never leave this place until I do it myself, if there is nobody else to help."
Miss Markham sat silent. She was the only one of the company who had studied the history of South America, and she did not believe that the ancient inhabitants of that country buried their kings in stone tombs, or felt it necessary to preserve their remains in phenomenal secrecy and security. She had read things, however, about the ancient peoples of this country which now made her eyes sparkle and her heart beat quickly. But she did not say anything. This was a case in which it would be better to wait to see what would happen.
"Captain!" cried Ralph, "let's go to see the thing. What is the use of waiting? Edna and Mrs. Cliff won't mind staying here while you take me to see it. We can go in ten minutes."
"No," said Mrs. Cliff, "there may be no danger, but I am not going to be left here with the sun almost down, and you two out of sight and hearing."
"Let us all go," said Edna.
The captain considered for a moment. "Yes," said he, "let us all go. As we shall have to take a lantern anyway, this is as good a time as another."
It was not an easy thing for the two ladies to get over the wall at the end of the passage, and to make their way over the rough and slippery bottom of the lake basin, now lighted only by the lantern which the captain carried. But in the course of time, with a good deal of help from their companions, they reached the turning of the cave and stood before the stone mound.
"Hurrah!" cried Ralph. "Why, captain, you are like Columbus! You have discovered a new hemisphere."
"It is like one of the great ant-hills of Africa," said Mrs. Cliff, "but, of course, this was not built by ants I wonder if it is possible that it can be the abode of water-snakes."