The mate and his men were much interested in the caves and the great stone face, and, as might have been expected, every one of them wanted to know where the narrow passage led. But as Ralph was on hand to inform them that it was the entrance to Mrs. Horn's apartment, they could do no more than look along its dusky length, and perhaps wonder why Mrs. Horn should have selected a cave which must be dark, when there were others which were well lighted.
Mrs. Cliff was soon ready, and explained to the inquiring mate her notion that these caves were used for religious purposes, and that the stone face was an ancient idol. In fact, the good lady believed this, but she did not state that she thought it likely that the sculptured countenance was a sort of a cashier idol, whose duty it was to protect treasure.
Edna, behind the stone barrier, had put her things in her bag, though she was not sure she had found all of them in the gloom, and she waited a long time, so it seemed to her, for Ralph's summons to come forth. But although the boy came to the wall several times, ostensibly to ask if she were not ready, yet he really told her to stay where she was, for the sailors were not yet gone. But at last he came with the welcome news that every one had departed, and they soon came out into the daylight.
"If anything is lost, charge it to me," said Ralph to Mrs. Cliff and his sister, as they hurried away. "I can tell you, if I had not thought of that way of keeping those sailors out of the passage, they would have swarmed over that lake bed, each one of them with a box of matches in his pocket; and if they had found that mound, I wouldn't give two cents for the gold they would have left in it. It wouldn't have been of any use to tell them it was the captain's property. They would have been there, and he wasn't, and I expect the mate would have been as bad as any of them."
"You are a good fellow, Ralph," said Mrs. Cliff, "and I hope you will grow up to be an administrator, or something of the kind. I don't suppose there was ever another boy in the world who had so much wealth in charge."
"You can't imagine," exclaimed Ralph, "how I hate to go away and leave it! There is no knowing when the captain will get here, nor who will drop in on the place before he does. I tell you, Edna, I believe it would be a good plan for me to stay here with those two black fellows, and wait for the captain. You two could go on the ship, and write to him. I am sure he would be glad to know I am keeping guard here, and I don't know any better fun than to be on hand when he unearths the treasure. There's no knowing what is at the bottom of that mound."
"Nonsense!" exclaimed Edna. "You can put that idea out of your head instantly. I would not think of going away and leaving you here. If the captain had wanted you to stay, he would have said so."
"If the captain wanted!" sarcastically exclaimed Ralph. "I am tired of hearing what the captain wants. I hope the time will soon come when those yellow bars of gold will be divided up, and then I can do what I like without considering what he likes."
Mrs. Cliff could not help a sigh. "Dear me!" said she, "I do most earnestly hope that time may come. But we are leaving it all behind us, and whether we will ever hear of it again nobody knows."
One hour after this Edna and Mrs. Cliff were standing on the deck of the Mary Bartlett, watching the plateau of the great stone face as it slowly sank into the horizon.