It showed itself as the great condor of the Andes, the second largest bird that flies
Without further speaking, the scientist stepped out upon the swaying bridge and gripped the twisted cables firmly fixed in buttresses of stone. At first he shuffled along with short, cautious steps. In front of him the footway of bamboo strips sloped away sharply clear down to the swaying center of the bridge. From far below, up through the mists which half hid the river, soared a bird the size of a pigeon. As it circled up through a thousand feet of space, it seemed to grow and grow until, by the time it reached the level of the bridge, rocking on mighty motionless wings, it showed itself as the great condor of the Andes, the second largest bird that flies. From its grim, naked head its cold eyes gazed evilly upon the man clinging to the swaying bridge, and then turned toward the little group huddled against the side of the precipice, as if counting them as additions to its larder of death. As the great vulture swept by, blotting out a stretch of sky as it passed, the wind hissed and sang through the quills of its enormous wings, taut and stiff as steel. Rocking, swaying, perfectly balanced in the rush of air that howled down the cañon, the bird circled over the bridge, and then, without a flap of its vast wings, dipped down into the depths below until, dwindling as it went, it disappeared in the spray of the prisoned river. To the travelers, no other sight could so have plumbed the depths that lay beneath the bridge. For a moment the scientist, sick and giddy, clung to the swaying cables which seemed to stretch tenuous as cobwebs across the sheer blackness of the abyss.
"Come back, Master," called Pinto. "No man can cross that bridge!"
"No man here will live who doesn't cross this bridge," returned the professor, as the wind brought again to their ears the war-cry of the Miranhas.
Bending double and clinging desperately to the ropes woven from tough maguey fiber, he edged his way down the swaying slope, while the others watched him as if fascinated. At times the full force of the wind as it was sucked through the long cañon swung the bridge out so far that he had to lie flat and cling for his very life's sake. When, at last, he reached the lowest part of the curve, instead of climbing up to the safety of the opposite shore, the scientist deliberately turned around and, taking advantage of every lull and pause in the sudden gusts which bore down upon him, began the long steep, slippery climb back to the point from which he had started.
"He's riskin' his life twice to show us the way," said old Jud, suddenly. "Come on! I'm more ashamed to stay than I'm scared to cross."
Foot by foot, clinging desperately to the sagging, straining cables, Professor Ditson fought his way back. When at last he regained the safety of the cliff-side, his face was white and drawn, and he was dripping with sweat, while his hands were bleeding from the chafing of the ropes; but there was a compelling gleam in his eyes, and his voice, when he spoke, was as precise and level as ever.
"I have proved that it is perfectly possible to go over this bridge in safety, and I believe that the cables are strong enough to hold the weight of us all," he said. "I will go first; Hen will go last. Don't look down. Hang on. Watch the man ahead, keep on going, and we'll get over—just in time."
He stretched his gaunt arm toward the trail, where now the Miranha band was in plain sight not half a mile away!
Again he turned and started out over the bridge, which swayed and swung above the death that roared far below. Without a word, but with teeth clinched grimly, Jud tottered after him, his long gray beard blowing in the wind. Next came Pinto, shaking with fright, but with a habit of obedience to his master stronger than his own conviction that he was going to his doom. Joe followed; and between him and Hen, who brought up the rear, was Will. As the full force of the wind struck the swinging structure, now loaded with their united weight, the taut cables and ropes creaked and groaned ominously, while now and again some weakened fiber would snap with a sudden report like a pistol-shot.