The captain sat and listened and thought. His listening brought him no return, and his thinking brought him too much. The most mournful ideas of what might happen if more than two or three of the desperadoes attacked the place crowded into his mind. If they came, they came to rob, and they were men who left behind them no living witnesses of their whereabouts or their crimes. And if two or three should come, and be repulsed, it would not be long before the rest would arrive. In fact, the only real hope they had was founded on the early return of Rynders—that is, if Rynders and his men were living.

The captain waited and listened, but nothing came but daylight. As soon as he was able to discern objects outside the opening on the plateau, he awoke Maka, and, leaving him on guard, he made his way to the lake cavern.

Here the light was beginning to come freely through the chasm which faced nearly east. Mok was sitting with his eyes open, and showed that he was alive by a little grunt when the captain approached. If there were such a thing here as a subterranean tide, it had not risen. There was no water where the lake had been.

Gazing across the empty basin, the captain felt a strong desire to go over, climb up to the opening, and discover whether or not the cavern was accessible on that side. It would be very important for him to know this, and it would not take long for him to make an investigation. One side of the rocky shelf which has been before mentioned sloped down to the lake, and the captain was just about to descend this when he heard a cry from the passage, and, at the same moment, a shout from Mok which seemed to be in answer to it. Instantly the captain turned and dashed into the passage, and, leaping over the barrier, found Maka standing near the entrance.

As soon as the negro saw him, he began to beckon wildly for him to come on. But there was no need now of keeping quiet and beckoning. The first shout had aroused everybody inside, and the two ladies and Ralph were already in the passage. The captain, however, made them keep back, while he and Maka, on their hands and knees, crawled toward the outer opening. From this point one could see over the plateau, and the uneven ground beyond, down to the beach and the sea; but there was still so little light upon this western slope that at first the captain could not see anything noticeable in the direction in which Maka was pointing. But in a few moments his mariner eyes asserted themselves, and he saw some black spots on the strip of beach, which seemed to move. Then he knew they were moving, and moving toward him—coming up to the cave! They were men!

"Sit here," said the captain to Maka, and then, with his gun in his hand, he rushed back to the rest of the party.

"They seem to be coming," said he, speaking as calmly as he could, "but we have discovered them in good time, and I shall have some shots at them before they reach here. Let us hope that they will never get here at all. You two," said he to Mrs. Cliff and Ralph, "are to be under command of Miss Markham. You must do exactly what she tells you to." Then, turning to Edna, he said, "You have your pistol ready?"

"Yes," said she, "I am ready."

Without another word, the captain took his other gun and all his ammunition, and went back into the passage. Here he found Mok, who had come to see what was the matter. Motioning the negro to go back to his post, the captain, with his loaded guns, went again to the entrance. Looking out, he could now plainly see the men. There were four of them. It was lighter down toward the sea, for the rocks still threw a heavy shadow over the plateau. The sight sent a thrill of brave excitement through the captain.

"If they come in squads of four," thought he, "I may be a match for them. They can't see me, and I can see them. If I could trust Maka to load a gun, I would have a better chance, but if I could pick off two, or even one, that might stop the others and give me time to reload. Come on, you black-hearted scoundrels," he muttered through his teeth, as he knelt outside the cave, one gun partly raised, and the other on the ground beside him. "If I could only know that none of your band could come in at that hole in the back of the cave, I'd call the odds even."