"Panther!" Ken whispered, instantly, to the boys. It was a different cry from that of the lion of the cañon, but there was a strange wild note that betrayed the species. A stillness fell, dead as that of a subterranean cavern. Strain his ears as he might, Ken could not detect the slightest sound. It was as if no javelin or any other animals had come down to drink. That listening, palpitating moment seemed endless. What mystery of wild life it meant, that silence following the cry of the panther! Then the jungle sounds recommenced--the swishing of water, the brushing in the thicket, stealthy padded footsteps, the faint snapping of twigs. Some kind of a cat uttered an unearthly squall. Close upon this the clattering of deer up the bank on the other side rang out sharply. The deer were running, and the striking of the little hoofs ceased in short order. Ken listened intently. From far over the bank came a sound not unlike a cough--deep, hoarse, inexpressibly wild and menacing.
"Tigre!" cried Pepe, gripping Ken hard with both hands. He could feel him trembling. It showed how the native of the jungle-belt feared the jaguar.
Again the cough rasped out, nearer and louder this time. It was not a courage-provoking sound, and seemed on second thought more of a growl than a cough. Ken felt safe on the island; nevertheless, he took up his rifle.
"That's a tiger," whispered George. "I heard one once from the porch of the Alamitas hacienda."
A third time the jaguar told of his arrival upon the night scene. Ken was excited, and had a thrill of fear. He made up his mind to listen with clearer ears, but the cough or growl was not repeated.
Then a silence set in, so unbroken that it seemed haunted by the echoes of those wild jungle cries. Perhaps Ken had the haunting echoes in mind. He knew what had sent the deer away and stilled the splashings and creepings. It was the hoarse voice of the lord of the jungle.
Pepe and the boys, too, fell under the spell of the hour. They did not break the charm by talking. Giant fireflies accentuated the ebony blackness and a low hum of insects riveted the attention on the stillness. Ken could not understand why he was more thoughtful on this trip than he had ever been before. Somehow he felt immeasurably older. Probably that was because it had seemed necessary for him to act like a man, even if he was only a boy.
The black mantle of night lifted from under the cypresses, leaving a gloom that slowly paled. Through the dark foliage, low down over the bank, appeared the white tropical moon. Shimmering gleams chased the shadows across the ripples, and slowly the river brightened to a silver sheen.
A great peace fell upon the jungle world. How white, how wild, how wonderful! It only made the island more beautiful and lonely. The thought of leaving it gave Ken Ward a pang. Almost he wished he were a savage.
And he lay there thinking of the wild places that he could never see, where the sun shone, the wind blew, the twilight shadowed, the rain fell; where the colors and beauties changed with the passing hours; where a myriad of wild creatures preyed upon each other and night never darkened but upon strife and death.