Where a foot is placed an effluvium remains for a considerable time. It is beyond the range of our sensibilities; but to a creature of the lower orders, especially to the hunters and the hunted, as interesting and ofttimes more lucid than is the printed page to us.
Nor was Tarzan dependent alone upon his sense of smell. Vision and hearing had been brought to a marvelous state of development by the necessities of his early life, where survival itself depended almost daily upon the exercise of the keenest vigilance and the constant use of all his faculties.
And so he followed the old trail of the Belgian through the forest and toward the north; but because of the age of the trail he was constrained to a far from rapid progress. The man he followed was two days ahead of him when Tarzan took up the pursuit, and each day he gained upon the ape-man. The latter, however, felt not the slightest doubt as to the outcome. Some day he would overhaul his quarry—he could bide his time in peace until that day dawned. Doggedly he followed the faint spoor, pausing by day only to kill and eat, and at night only to sleep and refresh himself.
Occasionally he passed parties of savage warriors; but these he gave a wide berth, for he was hunting with a purpose that was not to be distracted by the minor accidents of the trail.
These parties were of the collecting hordes of the Waziri and their allies which Basuli had scattered his messengers broadcast to summon. They were marching to a common rendezvous in preparation for an assault upon the stronghold of Achmet Zek; but to Tarzan they were enemies—he retained no conscious memory of any friendship for the black men.
It was night when he halted outside the palisaded village of the Arab raider. Perched in the branches of a great tree he gazed down upon the life within the enclosure. To this place had the spoor led him. His quarry must be within; but how was he to find him among so many huts? Tarzan, although cognizant of his mighty powers, realized also his limitations. He knew that he could not successfully cope with great numbers in open battle. He must resort to the stealth and trickery of the wild beast, if he were to succeed.
Sitting in the safety of his tree, munching upon the leg bone of Horta, the boar, Tarzan waited a favorable opportunity to enter the village. For awhile he gnawed at the bulging, round ends of the large bone, splintering off small pieces between his strong jaws, and sucking at the delicious marrow within; but all the time he cast repeated glances into the village. He saw white-robed figures, and half-naked blacks; but not once did he see one who resembled the stealer of the gems.
Patiently he waited until the streets were deserted by all save the sentries at the gates, then he dropped lightly to the ground, circled to the opposite side of the village and approached the palisade.
At his side hung a long, rawhide rope—a natural and more dependable evolution from the grass rope of his childhood. Loosening this, he spread the noose upon the ground behind him, and with a quick movement of his wrist tossed the coils over one of the sharpened projections of the summit of the palisade.
Drawing the noose taut, he tested the solidity of its hold. Satisfied, the ape-man ran nimbly up the vertical wall, aided by the rope which he clutched in both hands. Once at the top it required but a moment to gather the dangling rope once more into its coils, make it fast again at his waist, take a quick glance downward within the palisade, and, assured that no one lurked directly beneath him, drop softly to the ground.
Now he was within the village. Before him stretched a series of tents and native huts. The business of exploring each of them would be fraught with danger; but danger was only a natural factor of each day’s life—it never appalled Tarzan. The chances appealed to him—the chances of life and death, with his prowess and his faculties pitted against those of a worthy antagonist.
It was not necessary that he enter each habitation—through a door, a window or an open chink, his nose told him whether or not his prey lay within. For some time he found one disappointment following upon the heels of another in quick succession. No spoor of the Belgian was discernible. But at last he came to a tent where the smell of the thief was strong. Tarzan listened, his ear close to the canvas at the rear, but no sound came from within.
At last he cut one of the pin ropes, raised the bottom of the canvas, and intruded his head within the interior. All was quiet and dark. Tarzan crawled cautiously within—the scent of the Belgian was strong; but it was not live scent. Even before he had examined the interior minutely, Tarzan knew that no one was within it.
In one corner he found a pile of blankets and clothing scattered about; but no pouch of pretty pebbles. A careful examination of the balance of the tent revealed nothing more, at least nothing to indicate the presence of the jewels; but at the side where the blankets and clothing lay, the ape-man discovered that the tent wall had been loosened at the bottom, and presently he sensed that the Belgian had recently passed out of the tent by this avenue.
Tarzan was not long in following the way that his prey had fled. The spoor led always in the shadow and at the rear of the huts and tents of the village—it was quite evident to Tarzan that the Belgian had gone alone and secretly upon his mission. Evidently he feared the inhabitants of the village, or at least his work had been of such a nature that
