Jean shrugged his shoulders, but made no reply, and once more resumed his task over the fire. Silence rested over the region, for Reuben was caring for the horses while his friend was busy with his labours.

“I no think they fight mooch,” said Jean in a low voice.

Reuben hastily glanced up at the words of his friend, as for a moment the flight of the buffalo calf had been forgotten. Looking in the direction indicated by Jean, he saw that four or five buffaloes had advanced from the herd, keeping well together, and were moving toward the pack of wolves that still were busy over what remained of the unfortunate calf.

“Perhaps they won’t,” responded Reuben, “but they are going to do something which is almost as bad.”

Both men stood silent as they watched the herd. Although the animals were two miles distant, as has been said, in the clear air they seemed to be much nearer, and the entire herd was advancing in a body. Out from the ravine was coming a steadily increasing number of buffaloes. Soon the great herd, forming as if some one had been giving directions which they understood, began to move in such a manner that for a moment it appeared as if the prowling wolves would be surrounded. In a brief time, however, the savage animals were aware of the threatening danger, and with incredible speed fled from the region. The advancing buffaloes, however, did not halt when they saw their enemies disperse. Their speed steadily increased. The earth rumbled beneath the heavy tread of the myriad feet, producing a sound not unlike that of distant thunder.

An exclamation of dismay or fear from Jean caused Reuben to glance hastily at his companion; and it was plain that Jean was anxious or alarmed. Not many minutes elapsed, however, before Reuben understood the source of his friend’s excitement and was sharing in his feeling of fear.

The great herd, moving now as if it was controlled by one motive, with steadily increasing speed was directly approaching the very place which the trappers had selected for their camping-place.

[CHAPTER II—IN PURSUIT OF A HERD]

“Queek! Queek!” called Jean. “At once! Immediately!”

Whether or not it was the call of his excited companion that influenced Reuben, his pony was quickly bridled, and almost at the same time both men leaped upon the backs of their horses. In spite of the weariness of both men and beasts, in a brief time all were alike highly excited. The great rumbling mass was steadily approaching and the horses also were aware of the peril that threatened.