Meantime, the detective had overheard the scream; and had slid away from his hiding-place, and started to run toward the point from whence the cry had come. Spencer Vance was convinced that the scream had been uttered by Renie, and, remembering Sol Burton's attack upon the girl, he suspected the man had renewed his attempt. The detective ran for some distance, and saw no one; and his anxiety became intense lest some real harm had befallen the helpless girl. He could not understand what had become of her. When he first heard the cry, it did not appear as though the screamer could be more than a few hundred feet distant from where he lay ensconced; but he had covered thousands of square feet, and could see nothing of the girl, or, indeed, was there a living soul visible. The detective was straining his eyes in glances in every direction when he caught sight of the figure of a man moving stealthily across the sand. The detective started to follow the man, and speedily discerned that the stealthy prowler was the man Garcia. The latter had not seen the detective, and our hero kept upon his track, following him to the shore. On the beach were gathered a group of men, and in their midst Vance beheld the girl Renie. At a glance the detective took in the situation, Garcia, despairing of success with the old smuggler, had determined to kidnap the girl. There were three men besides the man Garcia, and four to one was pretty good odds; besides, the detective knew the men to be desperate and well prepared to fight. What should he do? He could not stand by and see the fair, helpless girl carried oft; and yet he was alone, and had no one to call upon for assistance. Lying off the shore was a sloop-yacht, and on the beach was a boat; the intention of the men was apparent. It was their purpose to carry the girl off to the yacht. Spencer Vance was an experienced officer, well posted in all the tricks and devices of his craft, and he at once began to carry out a scheme. He took up a position behind a sand-rift, and commenced to shriek and scream like a woman; and a moment later he became aware that his ruse was successful; two men came running toward the place where he lay concealed and as they approached the detective leaped to his feet. He had the men at a disadvantage; they were not expecting an attack, and were unprepared. The detective, however, was ready to receive them as they ran down the incline, and quick as lightning sprung upon the two men. The men were both stunned, and were down before they had a chance to make an outcry. Having disposed of the two men, the detective advanced toward the point on the beach where the two remaining men stood. He walled straight up to the kidnappers, who stood and gazed at him in amazement. "Heh, Renie!" he called, "are you going willingly with these men?" The men answered for the girl: "Yes; she is going with us. Who are you, and what have you got to say about it?"