Then all at once one of the men showed him that it was no fancy, for he raised his eyes looked across at his companion, and made a mocking grimace, just as he had been wont to do on shipboard, getting as answer a deprecating shake of the head.

And what did it mean? Death to Frank Mayne as he came up. For it was easy to see these were two of the convicts who had escaped. They were to blame for the missing sheep, and they must have seen and tracked Mayne to his hiding-place and meant his death.

This last was hard to comprehend, for why should one escaped convict wish to injure another? But Nic had no time for arguing out problems. The men intended harm to his friend, and it was his duty to try and save him. He had his gun, and if he could only hear Frank Mayne coming, a shout of warning would send him back.

But that gun: he wanted it for his own protection as well; and a shudder of horror ran through him as at that moment he again recalled the deck of the ship, with the convicts marching round and round, the soldiers resting upon their muskets, the stern-looking warders with their cutlasses, and that other man with the lowered, restless eyes and savage, wild-beast aspect, who passed him by from time to time looking ready for any evil deed.

How well Nic remembered now, and the old warder’s words! and the cold shiver ran through him once again.

For suppose that wretch had escaped as well, and was lurking about free so near the Bluff? The idea was horrible, and but for Frank Mayne’s sake Nic would have gloried in seeing the mounted police at hand.

But that gun! How could he have been so idiotic as to sling it across his shoulder just where he could not get at it without making some rustling sound!

Still it must be done, and he very softly drew his fingers toward the buckle at his breast, meaning to undo the strap instead of drawing it over his head. He kept his eyes fixed upon the men as they still watched that hole waiting for their prey. The nulla-nullas were balanced in their hands, and moment by moment, as his fingers busied themselves over the tongue of that buckle, which would not yield, Nic expected to see Frank Mayne’s head rise above the surface by the moist mossy sides. The water bubbled and gurgled, the insects hummed overhead, and that tongue would not yield till he put more pressure on, and then, with a sudden rush, it was loose.

The two men sprang up quickly, and Nic was in the act of rising too, presenting the gun, when there was a quick rustle, and a tremendous load fell across his back, driving him forward; the gun went off, and the boy was wrenched round and over upon his back, with a man’s hands at his throat, heavy knees upon his chest, and the horribly savage eyes of the ruffian of whom he had been thinking a minute before glaring into his.

“Hooroar!” cried the droll-looking convict, pouncing upon the gun and dragging it from Nic’s hand; “just the little tool I wanted! Where’s its bread and cheese, mate? Why, deary me, if it ain’t the little chap as used to look at us aboard the ship! How do ’ee do, mate?”