"Hum!" the hunter remarked; "and yet I fancy my eyes are not so bad either."

Curumilla, without further reply, placed his finger on his lips.

"Good!" the hunter said; "as you wish it, keep watch in my place, chief. When you are tired, however, be sure and wake me."

The Indian bowed. The three men wrapped themselves in their zarapés, and lay on the ground, Don Louis alone remaining awake.

It was a magnificent night: the sky, of a deep azure, was studded with an infinity of stars that sparkled like diamonds; the moon poured forth its tremulous and pallid beams; the atmosphere, wondrously pure and transparent, allowed the country to be surveyed for an enormous distance; the evening breeze had risen, and deliciously refreshed the air; the earth exhaled acrid and balmy perfumes; the waves died away amorously, and with mysterious murmurs, on the beach; and in the distance might be indistinctly traced the outlines of the coyotes which prowled about, howling mournfully, for they scented the novillos.

Louis, seduced by this splendid evening, and yielding to that prairie languor which conquers the strongest minds, was indulging in a gentle reverie. He had attained that stage of mental somnolency which is not waking, and yet not sleeping. He was enjoying the magic pictures his fancy conjured up, when he was suddenly roused from this charming sensation by a hand pressing heavily on his shoulder, while a voice muttered in his ear the single word,—

"Prudence."

Louis, suddenly recalled to a consciousness of the present, opened his half-closed eyes, and turned sharply round. Curumilla was leaning over him, and repeated his warning, with a sign of terrible meaning. The count seized his rifle, which rested near him.

"What is the matter?" he asked in a low voice.

"Come, but keep in the shade," Curumilla replied in the same tone.