The sound of seething, gushing water deafened him at first, but when he had been a little while immersed the thunderous notes, so distressing a moment ago, seemed to become lessened in intensity. The buzzing was now, if anything, rather pleasant, while his mind, acutely active but a second before, became blissfully content, as if absorbed in paying attention to that curious singing in his ears. But if he himself were unconscious of other things, nature still urged him to struggle on for existence. Jim had no idea of the frantic kicks he gave, of the grim force with which he clung to the man and to the buoy. Then something revived his senses and caused his wandering wits to take notice of his surroundings. A breeze blew in his face, while someone shouted in his ear. He opened his eyes, and in the gloom that pervaded everything made out the grinning features of Tom. "Yo's dere, den; yo's safe," he heard the negro exclaim. "By lummy, but dat extra near squeak, so I tell yo! Let go ob de man. Me take him for de moment. Yo puffed, blowin' like an engine." Jim was exhausted; his breath was coming in quick, painful gasps. He could not spare any for an answer, and, indeed, had so little strength left in him that he did not even resent Tom's movement to take the injured passenger from his care. Instead, he clung to the buoy, fighting for air, wondering vaguely exactly what had happened. "Yo hang dere quiet and easy," said Tom, one hand on the buoy and his muscular arm about the half-drowned man. "Yo puffin' like a grampus now, but in a little bit yo be better, not make such a noise, have plenty strength again. Den take de man and swim back with him. Tom only come to look on and see dat all well." It was like the gallant fellow to make light of his own adventure, to stand aside now that he was sure that Jim was safe, so as not to rob him of the honour which would follow. Tom was indeed a very honest negro, a man with a wide, big heart, which held a large corner for Jim and his sister. He grinned in Jim's face, then suddenly turned and looked over his shoulder. "By de poker, but here someone else!" he muttered. "Who dar? We's safe and sound. Yo hab no cause to worry." "And I ain't worryin'," came a well-known voice through the darkness. "I comed along here jest to see what's happenin'. Is Massa Jim right and well?" A growl burst from Tom's lips as he recognized the voice, and at once he turned a pair of blazing eyes upon the culprit who had dared to follow him. "Dat yo, Sam?" he demanded. "Den what fo yo dare to leave de missie? Yo get back right now, or by de poker, me knock you into twenty cocked hat! What fo yo jump overboard and risk gettin' drowned?" The question brought a gurgle from the jolly little Sam. He laughed outright beneath the nose of the irate Tom, and, reaching the buoy, clung to it for a moment or so before he deigned to reply.