“It will make no difference whom he suspects—after to-night,” said Rokoff, with a nasty grin.

After Miss Strong had gone below that night Tarzan stood leaning over the rail looking far out to sea. Every night he had done this since he had come on board—sometimes he stood thus for an hour. And the eyes that had been watching his every movement since he had boarded the ship at Algiers knew that this was his habit.

Even as he stood there this night those eyes were on him. Presently the last straggler had left the deck. It was a clear night, but there was no moon—objects on deck were barely discernible.

From the shadows of the cabin two figures crept stealthily upon the ape-man from behind. The lapping of the waves against the ship’s sides, the whirring of the propeller, the throbbing of the engines, drowned the almost soundless approach of the two.

They were quite close to him now, and crouching low, like tacklers on a gridiron. One of them raised his hand and lowered it, as though counting off seconds—one—two—three! As one man the two leaped for their victim. Each grasped a leg, and before Tarzan of the Apes, lightning though he was, could turn to save himself he had been pitched over the low rail and was falling into the Atlantic.

Hazel Strong was looking from her darkened port across the dark sea. Suddenly a body shot past her eyes from the deck above. It dropped so quickly into the dark waters below that she could not be sure of what it was—it might have been a man, she could not say. She listened for some outcry from above—for the always-fearsome call, “Man overboard!” but it did not come. All was silence on the ship above—all was silence in the sea below.

The girl decided that she had but seen a bundle of refuse thrown overboard by one of the ship’s crew, and a moment later sought her berth.

Chapter XIII
The Wreck of the “Lady Alice”

The next morning at breakfast Tarzan’s place was vacant. Miss Strong was mildly curious, for Mr. Caldwell had always made it a point to wait that he might breakfast with her and her mother. As she was sitting on deck later Monsieur Thuran paused to exchange a half dozen pleasant words with her. He seemed in most excellent spirits—his manner was the extreme of affability. As he passed on Miss Strong thought what a very delightful man was Monsieur Thuran.

The day dragged heavily. She missed the quiet companionship of Mr. Caldwell—there had been something about him that had made the girl like him from the first; he had talked so entertainingly of the places he had seen—the peoples and their customs—the wild beasts; and he had always had a droll way of drawing striking comparisons between savage animals and civilized men that showed a considerable knowledge of the former, and a keen, though somewhat cynical, estimate of the latter.