With the unerring certainty of blood-hounds, the three friends now settled down to the pursuit of Petawanaquat. From the Saulteaux Indians they had received an exact description of the spot where the fugitive had parted from them; they had, therefore, little difficulty in finding it. Still less difficulty had they in following up the trail, for the grass was by that time very long, and a horse leaves a track in such grass which, if not very obvious to unaccustomed eyes, is as plain as a highway to the vision of a backwoods hunter or a redskin.  
Over the prairie waves they sped, with growing excitement as their hopes of success increased; now thundering down into the hollows, anon mounting the gentle slopes at full swing, or rounding the clumps of trees that here and there dotted the prairie like islets in an interminable sea of green; and ever, as they rounded an islet or topped a prairie wave, they strained their eyes in earnest expectation of seeing the objects of their pursuit on the horizon, but for several days they raced, and gazed, and hoped in vain. Still they did not lose confidence, but pressed persistently on.
 
“Our horses are fresh and good,” said Victor as they reined in to a gentle trot on the brow of a knoll to rest for a few minutes, “and Petawanaquat’s horse, whether good or bad, is double-weighted—although, to be sure, Tony is not heavy.”
 
“Besides,” said Ian, “the redskin does not dream now of pursuit; so that, pressing on as we do, we must overtake him ere long.”
 
“Voilà, de buffalo!” said Rollin, pointing to a group of these huge creatures, in the midst of which two bulls were waging furious war, while the cows stood by and looked on. “Shall ve go an’ chase dem?”
 
“No, Rollin; we have more important game to chase,” said Victor, whose conscience, now that he was free from the exciting influences of the camp, had twinged him more than once for his delay—even although it was partly justifiable—while the image of poor Tony, with outstretched, appealing hands on a flying horse behind a savage, was ever before him. “Come on come on!”
 
He switched his horse, and went skimming down the slope, followed by his comrades.
 
Soon they came to a place where the ground was more broken and rocky.
 
“Voilà! a bar! a bar!” shouted the excitable half-breed; “com, kill him!”
 
They looked, and there, sure enough, was an object which Rollin declared was a large grizzly bear. It was a long way off, however, and the ground between them seemed very broken and difficult to traverse on horseback. Ian Macdonald thought of the bear’s claws, and a collar, and Elsie, and tightened his reins. Then he thought of the risk of breaking a horse’s leg if the bear should lead them a long chase over such ground, and of the certain loss of time, and of Petawanaquat pushing on ahead. It was a tempting opportunity, but his power of self-denial triumphed.
 
“No, Rollin, we have no time to hunt.”
 
“Behold!” exclaimed Rollin again; “more buffalo!”
 
They had swept past the stony ground and rounded a clump of trees, behind which a small herd of animals stood for a few seconds, staring at them in mute amazement. These snorted, set up their tails, and tore wildly away to the right. This was too much. With a gleeful yell, Rollin turned to pursue, but Victor called to him angrily to let the buffalo be. The half-breed turned back with a sigh.
 
“Ah, vell! ve must forbear.”
 
“I say, Vic,” remarked Ian, with a significant smile, “why won’t you go after the buffalo?”
 
Victor looked at his friend in surprise.
 
“Surely,” he said, “it is more important as well as more interesting to rescue one’s brother than to chase wild animals!”
 
“True, but how does that sentiment accord with your wish that you might spend eternity in hunting buffalo?”
 
“Oh, you know,” returned Victor, with a laugh, “when I said that I wasn’t thinking of—of—”
 
He switched his horse into a wilder gallop, and said no more. He had said quite enough. He was not the only youth in North America and elsewhere who has uttered a good deal of nonsense without “thinking.” But then that was long ago. Youths are wiser now!
 
On the evening of that day, when the sun went down, and when it became too dark to follow the trail, and, therefore, unsafe to travel for fear of stumbling into badger-holes, the three friends pulled up beside a clump of wood on the margin of a little stream, and prepared their encampment.
 
Little did they imagine, while busy with the fire and kettle, how nearly they had gained their end, yet how disastrously they had missed it. Well for man, sometimes, that he is ignorant of what takes place around him. Had the three pursuers known who was encamped in a clump of trees not half a mile beyond them, they would not have feasted that night so heartily, nor would they have gone to sleep with such calm placidity.
 
In the clump of trees referred to, Petawanaquat himself sat smoking over the dying embers of the fire that had cooked his recently devoured supper, and Tony, full to repletion, lay on his back gazing at him in quiet satisfaction, mingled slightly with wonder; for Tony was a philosopher in a small way, and familiarity with his father’s pipe had failed to set at rest a question which perplexed his mind, namely, why men should draw smoke into their mouths merely to puff it out again!
 
When the pipe and the camp-fire had burnt low, Tony observed, with much interest, that the Indian’s eyes became suddenly fixed, that his nostrils dilated, his lips ceased to move, the cloud that had just escaped from them curled round the superincumbent nose and disappeared without being followed by another cloud, and the entire man became rigid like a brown statue. At that point Tony ceased to think, because tired nature asserted her claims, and he fell sound asleep.
 
The practised ear of the Indian had detected the sound of horses’ feet on the prairie. To any ordinary man no sound at all would have been perceptible save the sighing of the night wind. Petawanaquat, however, not only heard the tramp, but could distinguish it from that of buffalo. He rose softly, ascertained that Tony was asleep, turned aside the bushes, and melted into darkness among the trees. Presently he emerged on the plain at the other side of the clump, and there stood still. Patience is one of the red man’s characteristics. He did not move hand or foot for half an hour, during which time, despite the distance of the neighbouring clump, he could easily make out the sound of an axe chopping wood, and even heard human voices in conversation. Then a gleam of light flickered among the trees, and the kindling camp-fire of our three friends became visible.
 
The Indian now felt comparatively safe. He knew that, whoever the new arrivals might be, they were unsuspicious of his presence in the vicinity, and had encamped for the night. He also knew that when men are busy with supper they are not very watchful, especially when danger is not expected. He, therefore, gave them another quarter of an hour to prepare supper, and then moved stealthily over the plain towards them.
 
On gaining the shelter of the tree............