"Gee, he's got us there!" cried Jim, disappointment in his voice. "I thought we were going to do the trick nicely. But wait a little: we'll be more successful on the second occasion. Run her slick across, Sam," he called. "I'm going to try and trick him."

There is little doubt that had the enemy desired it he could almost have arrested their progress on this occasion, or forced Jim and his party to change their course. But the commander of the steamer had his own ideas as to how to accomplish his purpose. Ching simpered when he discovered the truth of the matter, but had the good sense to mention his fears to our hero.

"Oh, him one velly clever person!" he giggled. "Yo see what him up to, Mass Jim. All de time him run across alongside ob us him slippey nearer and nearer. Presently him so close dat de black man able to dig dere spears in."

Jim shivered in spite of the heat, for the sun was now streaming down upon the contestants. Then he looked closely at the enemy, and realized that Ching had given him valuable information. For though the steamer was cutting across the river on an apparently parallel course to his own, yet all the while her steersman was jerking his helm over, bringing her by degrees closer to Jim and his party. It was a difficulty which needed to be faced promptly, and Jim's lips were hard set together as he made his plans to meet it. Very gradually he slowed down his motor, keeping a keen eye all the while upon the stern of the steamer, where white foam showed how her propeller was working.

"I don't know that his game won't suit me very well after all," he said to himself. "So long as he actually doesn't come within spear range of us we are all right, and my aim all the while is to get him dead on a line with us. Once there he can't catch us by suddenly swerving off from his course, as was nearly the case this last time. Sam, boy," he called out, "when I shout, bring her clear round and face her back on her tracks right away for the other side. Tomkins, you can get your men ready for a little bit of quick business."

For the past five minutes not a shot had left the rifles of his comrades, though an occasional ball came from the deck of the steamer. It was remarkable that the rascal there made no attempt to use his revolver; but perhaps he had run out of ammunition, and in any case the management of the craft occupied all his attention. As to the men under Jim's command, all wore a grim determined expression. Even Ching seemed to take some definite interest in the adventure, and, though one could not be quite sure of the matter, those slanting, almond eyes bore just the merest trace of anxiety. Otherwise, there was tense excitement on board, for by now each man had realized the nature of the manœuvre about to be attempted, and the narrow margin which must necessarily lie between themselves and safety. It was Tomkins who put in an encouraging word.

"Jest you get in at it, pard," he said, moistening the palms of his hands preparatory to gripping his rifle. "You ain't got no cause to fear that we won't fight. When the ruction comes you can count on us, every blessed mother's son of us; and, see here, siree, ef you don't happen to bring off this trick, and there's a chance of them chaps driving us up into a corner, jest round her and go baldheaded for 'em. I'm getting sick of this here runnin'."

His two comrades nodded curtly to show that this statement met with their full approval, while Tom, the noble fellow, who always seemed to carry his young master's interests uppermost in his mind, stepped across to the rear edge of the cab and leaned over towards the motor.

"We ain't gwine to knuckle down to dem black niggers," he said in a voice which was meant to be a confidential whisper, but which as an actual fact was a deep-chested roar that wellnigh drowned the noise of the engine. "Yo ain't got no cause to fear, 'cos this here boy and all de odders wants to get back right along home again. We ain't a-goin' to let scum like this stan' in de way. Nebber. We's gwine to do as we wants. Sam, jest see that you're nippy."

Tom gave his master one of his most expansive smiles; then, as if to relieve his overwrought feelings, he swung round and glowered upon the harmless but extremely energetic Sam. Indeed, if the fortunes of the day were due to some extent to those who had wielded rifles, they were none the less the work of Jim and Sam and Ching between them, while at this very critical moment they may rightly be said to have rested in the hands of our hero and the little negro only.