There was a tremendous roar, full-throated, from the creature's jaws, a rush as it leaped over George Harrington; the rifle was falling down the gulch, crashing from stone to stone; and, knife in hand, and uttering a hoarse shriek of horror, Dan Portway was bounding from rock to rock, striving to mount the steep side of the rugged place, and with the bear in full pursuit. They were moments of agony, such as add years to a man's life, and, listening to the panting breath of his pursuer, and his low snuffling snarl, Portway climbed on, expecting, moment by moment, to feel the monster's huge claws upon his shoulder, and his half-inanimate body snatched back into the creature's grasp. There was no chance of escape, for there, in its natural haunts, the bear could shuffle along at double the rate of a man, but still, for what seemed like an eternity of horror--really, but a fraction of a minute--Portway climbed on, till in struggling round a projecting rock, he slipped, and fell some twenty feet, to be caught up by a gnarled and distorted pine-trunk, which, with its roots in a crevice of the mountain side, projected almost at right angles over the gulch. Half maddened by fear, the wretched man instinctively clung to the boughs, and saved himself from falling farther, and then, with his eyes fixed and staring up at his enemy steadily descending in pursuit, he crept along the bending stem, seating himself astride the tree, and getting farther and farther from the side of the gulch, till a warning crack told him of danger, while the swaying motion of the little trunk showed that he had reached the farthest point which the tree would bear. "Grizzlies can't climb trees," he thought, and he watched his enemy as it came on, deliberately and cautiously, until it reached the spot from whence the fir-tree sprang. Here it paused, snuffed the ground, and stretched out its neck toward the trembling man, who shifted his position a little, so as to be ready to use his knife with effect. The bear's movements were as cautious and deliberate as it is possible to conceive; it placed one paw on the trunk, and then, reaching out the other with its terrible array of hooked talons, made as if to claw Portway from where he sat, and to draw him to the rocks. As the bear strained to reach him, Portway backed slowly towards the branches, shuddering as he glanced downward into the gulf, and realised that the thin elastic trunk was all that he had to depend upon to save him from the two terrible forms of death so close at hand. At any moment he felt that the weight upon the tree might act as a lever of sufficient power to tear the roots out of the crevice in which they grew, and this kept him from moving another inch, though the bear was cautiously trying the tree, and while keeping its hind-quarters well upon the substantial rocks, stretching out farther and farther with its huge length of reach, till the terrible claws came within a foot or two of his breast.