"'Nother sheep gone, Master Nic," said Brookes next morning.

"Then we'll have the dogs out and have a hunt round. Whose flock was it among?"

"Bung's."

"All right, then; we'll have a turn at once."

Old Sam was told of what was to take place, Damper and Rigar were fetched from their charges, and gladly joined in, while the dogs nearly went mad--all three seeming to fully understand what was going to take place, and displaying their mad delight by charging and rolling one another over, and a sham worry all round, that suggested horrors for any unfortunate dingo with which they were not at play.

As Nic rode on between his two men, with the dogs and blacks in front, he began to feel a little suspicious of the latter, from the way in which they talked and laughed one to the other, as if they enjoyed the loss of a sheep as a very good joke; and the boy could not help asking himself whether they were taking advantage of his inexperience to help themselves to the wherewithal for an occasional feast.

This impressed him so much at last that he mentioned his suspicions to old Sam.

But the man shook his head.

"No, sir; I think not," he replied. "We look too sharp after 'em, and they're too well fed. I won't say what a hungry blackfellow mightn't do, but our boys ain't hungry, and that makes all the difference. What do you say, Brooky?"

"I say it ain't the blacks; but I know."

As the man spoke he examined the pan of his gun, and then took out his knife and began to chip the flint, so that it might be certain to strike out sparks.

"What do you know?" said Nic, looking at the man wonderingly.

"What do I know?" said Brookes, giving him a defiant look: "why, I know it's that there Leather as is skulking about like a rat, and s.n.a.t.c.hing a sheep whenever he likes."

"Absurd!" cried Nic indignantly.

"Oh, all right, sir, it's 'surd, then; you know best, o' course. You're master, and I'm on'y a servant; but I say as that there Leather killed all them sheep, and if the doctor was at home he'd soon stop that."

"Go on, dogs!" shouted Nic, riding forward to hide his annoyance and fidgety looks, for Brookes had looked at him in a way which troubled him.

The blacks led on among the trees and over the pastures, now nearly brown for want of rain; and to Nic's annoyance the men made for the stretch of country which ran along by the side of the gorge. Then suddenly one of the collies uttered a sharp bark, which was taken up by the other, Nibbler gave forth his deep growl, and as they started off on the scent of something, he followed, and the blacks trotted close behind.

Nic felt a peculiar, sense of hesitation; but his two men started in a run, and he felt that he must go too, though this part of the country seemed to him the least likely for dingoes, and he began to wonder whether the dogs had taken up the scent of a man who had pa.s.sed that way, and if so, would it be the convict?

Ten minutes later he felt ready to stop the hunt, for the dogs were right on the line he would have himself taken to reach the spring which ran down to the tunnel-like cavern. Certainly it was miles away, but, going at a pretty good speed, Nic felt that the dogs would quickly reduce the distance, and his horror increased.

"They'll soon have him, Master Nic," panted old Sam, who ran, in spite of his years, better than his companion, the blacks being now out of sight.

"Have whom?" cried Nic; but he repented directly, for Brookes turned and gave him another curious look.

"Why, that there dingo, sir," said Sam.

"_Cooey_--_cooey_!" came from a distance, as the faint barking of the dogs ceased; and Nic pressed forward, to arrive, in a quarter of a mile or so, at a dense thicket, within which he could see the blacks and hear the dogs whining and snuffling about.

"Got him?" cried Nic, with an intense feeling of relief.

"Mine help dog follow find him," cried Bungarolo with a broad grin; and the boy urged his horse in through the bushes, to find a skin tossed down, and plenty of evidence of a sheep having been lately killed there.

He was staring down at the remains, while the dogs stood whining and snuffling round, eager to make a feast of the offal, but kept back by the blacks, who each held a nulla-nulla with its melon-shaped k.n.o.b in front of their noses.

"He! he!" laughed Brookes. "That's a clever sort o' dingo, Sam. I never see one skin his sheep before and dress him."

Old Sam rubbed one side of his nose and looked at Nic, who turned sharply to the blacks.

"Here, you!" he cried angrily--"you killed this sheep!"

"Baal! Baal!" they cried in angry chorus. "No kill--no mumkull sheep fellow. Plenty mutton--plenty. White Mary gib plenty mutton. You pidney (know)."

"No, I want to pidney," cried Nic. "Here, Bung, who killed the sheep, then?"

"No pidney. Soon find."

The man, imitated by his fellows, began to search about, and soon took up a barefoot trail and pointed to a drop of blood now and then where it lay dried upon a leaf.

"Could Leather have killed a sheep and taken it away?" thought Nic.

"No--impossible!" and he was following the blacks in a hesitating spirit, when Brookes stopped short.

"What is it?" cried old Sam, imitating his action.

"I ain't going to walk into no hambudges," growled Brookes.

This roused Nic into action.

"Here!--Hi! Bung, all of you stop!" he cried, and the blacks paused and waited till they came up, looking at their young master inquiringly.

"Find tracks?" asked Nic.

"Plenty mine find mandowie."

"Black fellow's?" cried Nic.

"Baal! Baal! white fellow!" cried all three--"white fellow."

Brookes gave a ghastly grin and c.o.c.ked his gun.

"I ain't going no farther," he growled. "It's walking into a hambudge.

Black fellows don't kill sheep like that."

"No plenty mumkull sheep," cried Damper. "White fellow."

"P'r'aps we'd better not go on, sir," whispered old Sam uneasily.

Nic said nothing, but rode slowly back to where the remains of the sheep had been discovered, followed by the rest, the blacks chattering together in a great state of excitement, and the dogs whining and uneasy.

"Pick up the skin, Sam," said Nic; and the old man made one of the blacks carry it shouldered over his spear.

Nothing more was said, Nic riding along feeling sadly puzzled, and trying to follow out a peculiar line of thought without success. It had something to do with an idea about, spite, and whether it was possible that Brookes had killed these sheep on purpose to make it seem that Leather was lurking about destroying his late employer's property, so that, when once this idea took deep root, another expedition might be planned for the purpose of hunting the convict down, and relieving him of an object which caused him constant dread.