Perhaps an hour later the startled forest resounded with an agonized scream, so piercing and so appallingly human that all the camp sprang awake. The outcry came but once, sounding from some place not far off, near the water's edge, and in the direction toward which the huge serpent had disappeared. Before the watcher had time to tell the others of what he had seen, one of the boatmen discovered the rut left in the soft ground by the reptile. Thereafter Knowlton kept his own counsel, listening to the excited curses of the men and observing their pallor and their nervous scanning of the shadows. José said the screech undoubtedly was the death shriek of some animal caught and crushed in the snake's tremendous coil. McKay concurred with a nod. And when Knowlton casually said it was tough that nobody had been awake to shoot the thing as it passed the camp, José emphatically disagreed.
A bullet fired into that fiendish giant, he averred, would have meant death to one or more men; for the serpent's writhing coils and lashing tail would have knocked down the sleeping-hut and shattered the spines of any men they struck. No, let Señor Knowlton thank the saints that the awful master of the swamps had gone its way unmolested. For the rest of that night Knowlton kept his watch openly, accompanied by José and three of the paddlers, who refused to sleep again until they should be miles away from the vicinity of that dread monster.
Two nights afterward the camp was aroused again. Tim alone saw the start of the disturbance, and he kept mum about it because he did not choose to let the Peruvians know he had been on the alert. Out from the gloom and straight past the huts a thick-bodied, curve-snouted animal came charging madly for the river, carrying on its back a ferocious cat creature whose fangs were buried deep in its steed's neck—a tapir attacked by a jaguar. With a resounding plunge the elephantine quarry struck the water and was gone. The tiger cat, forced to relinquish its hold or drown, swam hurriedly back to the bank below the encampment, where it roared and spat and squalled in a blood-chilling paroxysm of baffled fury. And though every man was awakened, not one left the flimsy shelter of his net. Nor did anyone so much as speak until Tim, wearying of the noise, announced his intention to "go bust that critter in the nose and give him somethin' to yowl about."
The proposal met with instant and peremptory veto.
"As you were!" snapped McKay. "Let him alone! You wouldn't have a Chinaman's chance in that black bush. A jaguar is bad all the time, and when he's mad he's deadly. Never fool with one of those beasts, Tim. I've met them before and I know what they can do."
To which José agreed with many picturesque oaths, declaring that a jaguar was no mere beast—it was a devil. Tim, grumbling, obeyed orders. The jaguar, hearing their voices, stopped its noise and probably reconnoitered the camp. But no man saw the brute, and its next roar sounded from some spot far off in the jungle.
Other things, too, passed within Tim's range of vision from time to time in the moonlit hours: a queer bony creature which he took for some new kind of turtle, but which really was an armadillo; a monstrous hairy spider which slid like a streak up his net, hung there for a time, decided to go elsewhere, and departed with such speed that the man inside rubbed his eyes and wondered if he was "seein' things that ain't"; a couple of vampires which flitted in from nowhere like ghoulish ghosts, wheeled and floated silently on wide wings, seeking an exposed foot protruding from the hammocks, found none, rested a moment on the roof poles, chirping hoarsely, and veered out again into the night.
To Knowlton's watch came a strange owl-faced little monkey with great staring eyes and face ringed with pale fur—one of those night apes seldom seen by man; a small troop of kinkajous, slender, long-tailed animals which looked to be monkeys, but were not, and which leaped deftly among the branches like frolicsome little devils let loose to play under the jungle moon; a big scaly iguana, its back ridged with saw teeth and its pendulous throat pouch dangling grotesquely under its jaw; and more than one deadly snake and huge alligator, the first gliding past with venomous head raised and cold eye glinting, the second lying quiescent except for occasional openings of horrific jaws.
To the ears of both the hammock sentinels came the mournful sounds of living things unseen. From the depths beyond drifted the weird plaint of the sloth, crying in the night, "Oh me, poor sloth, oh-oh-oh-oh!" Goat suckers repeated by the hour their monotonous refrains, "Quao quao," or "Cho-co-co-cao," while a third earnestly exhorted, "Joao corta pao!" ("John, cut wood!"). Tree frogs and crickets clacked and drummed and hoo-hooed, guaribas poured their awful discord into the air, and on one bright breathless night there sounded over and over a call freighted with wretchedness and despair—the wail of that lonely owl known to the bushmen as "the mother of the moon," whose dreadful cry portends evil to those who hear it.
Sometimes the air shook with the thunderous concussion of some great falling tree which, long since bled to death by parasitical plant growths, now at last toppled crashing back into the dank soil whence it had forced its way up into a place in the sun. Other noises, infrequent and unexplainable, also drifted at long intervals from the mysterious blackness. And in all the medley of night sounds not one was cheerful. The burden of the jungle's cacophonic cantanta ever was the same—despair, disaster, death.