"Attention!" Valentine muttered in a low voice to his comrade.

The sudden appearance of the two men startled a cloud of night birds and bats, which flew away heavily in all directions, uttering shrill cries. Valentine went on, not troubling himself about these funereal guests, whose sports he so unexpectedly noticed. All at once, a hoarse and prolonged growl came from a distant corner of the cave.

The two men stopped as if rooted to the ground. They found themselves face to face with a magnificent black bear, whose usual residence this cavern doubtless was, and which, standing on its hind legs with open mouth, showed the troublesome persons who came to trouble it so inopportunely in its lair, a tongue red as blood, and glistening claws of a remarkable length. It balanced itself clumsily, according to the fashion of its congeners, and its round and dazzled eyes were fixed on the adventurers in a manner that would cause reflection. Fortunately, they were not the men to let themselves be intimidated for long.

"Hum!" said Valentine, surveying the animal, "I was sure of it; there is a young fellow who seems inclined to sup with us."

"My rifle, on the contrary, will make us sup with him," Don Pablo said with a laugh.

"For Heaven's sake do not fire," the hunter said quickly, as he checked the young man who had already shouldered his rifle; "a shot fired at this spot will produce a fearful row: we do not know what sort of people may be prowling around us; so we must not compromise ourselves."

"That is true," Don Pablo remarked; "but what is to be done?"

"That is my business," Valentine replied; "take my torch, and hold yourself in readiness to help me."

Then, resting his rifle against the side of the cave, he went out, while the Mexican remained alone, facing the bear, which, dazzled and perplexed by the light, did not venture to stir. In a few minutes Valentine returned; he had been to fetch his lasso, fastened to the saddle bow.

"Now, stick your torches in the ground, to be ready for any accident."