David alone formed an exception to these varying emotions. A gleam of light from the opening crossed his wan countenance, and fell upon the pages of the little volume, whose leaves he was again occupied in turning, as if searching for some song more fitted to their condition than any that had yet met his eye. He was, most probably, acting all this time under a confused recollection of the promised consolation of Duncan. At length, it would seem, his patient industry found its reward; for, without explanation or apology, he pronounced aloud the words "Isle of Wight," drew a long, sweet sound from his pitch-pipe, and then ran through the preliminary modulations of the air, whose name he had just mentioned with the sweeter tones of his own musical voice.
"May not this prove dangerous?" asked Cora, glancing her dark eye at Major Heyward.
"Poor fellow! his voice is too feeble to be heard amid the din of the falls," was the answer; "besides, the cavern will prove his friend. Let him indulge his passion, since it may be done without hazard."
"Isle of Wight!" repeated David, looking about him with that dignity with which he had long been wont to silence the whispering echoes of his school; "'tis a brave tune, and set to solemn words; let it be sung with meet respect!"
After allowing a moment of stillness, to enforce his discipline, the voice of the singer was heard, in low, murmuring syllables, gradually stealing on the ear, until it filled the narrow vault with sounds rendered trebly thrilling by the feeble and tremulous utterance produced by his debility. The melody, which no weakness could destroy, gradually wrought its sweet influence on the senses of those who heard it. It even prevailed over the miserable travesty of the song of David which the singer had selected from a volume of similar effusions, and caused the sense to be forgotten in the insinuating harmony of the sounds. Alice unconsciously dried her tears, and bent her melting eyes on the pallid features of Gamut with an expression of chastened delight that she neither affected nor wished to conceal. Cora bestowed an approving smile on the pious efforts of the namesake of the Jewish prince, and Heyward soon turned his steady, stern look from the outlet of the cavern, to fasten it, with a milder character, on the face of David, or to meet the wandering beams which at moments strayed from the humid eyes of Alice. The open sympathy of the listeners stirred the spirit of the votary of music, whose voice regained its richness and volume, without losing that touching softness which proved its secret charm. Exerting his renovated powers to their utmost, he was yet filling the arches of the cave with long and full tones, when a yell burst into the air without, that instantly stilled his pious strains, choking his voice suddenly, as though his heart had literally bounded into the passage of his throat.
"We are lost!" exclaimed Alice, throwing herself into the arms of Cora.
"Not yet, not yet," returned the agitated but undaunted Heyward; "the sound came from the centre of the island, and it has been produced by the sight of their dead companions. We are not yet discovered, and there is still hope."
Faint and almost despairing as was the prospect of escape, the words of Duncan were not thrown away, for it awakened the powers of the sisters in such a manner that they awaited the result in silence. A second yell soon followed the first, when a rush of voices was heard pouring down the island, from its upper to its lower extremity, until they reached the naked rock above the caverns, where, after a shout of savage triumph, the air continued full of horrible cries and screams, such as man alone can utter, and he only when in a state of the fiercest barbarity.
The sounds quickly spread around them in every direction. Some called to their fellows from the water's edge, and were answered from the heights above. Cries were heard in the startling vicinity of the chasm between the two caves, which mingled with hoarser yells that arose out of the abyss of the deep ravine. In short, so rapidly had the savage sounds diffused themselves over the barren rock, that it was not difficult for the anxious listeners to imagine they could be heard beneath, as in truth they were above and on every side of them.