It was not without difficulty that these two men succeeded in understanding each other. Glenarvan, fortunately, knew the habits of the red wolf. Without this knowledge he could not have interpreted the words and gestures of the Patagonian.

Nevertheless, a quarter of an hour passed before he could give to Robert the meaning of Thalcave's answer. He had questioned the Indian concerning their situation.

"And what did he answer?" inquired Robert.

"He said that, cost what it may, we must hold out till daybreak. The aguara goes out only at night, and when morning comes he returns to his lair. He is the wolf of darkness, a cowardly beast that fears the daylight."

"Well, let us defend ourselves till day."

"Yes, my boy, and with our knives if we can no longer use our guns."

Already Thalcave had set the example, and when a wolf approached the fire, the long knife of the Patagonian was thrust through the flames and drawn back again red with blood.

However, the means of defense were failing. About two o'clock in the morning, Thalcave threw into the fire the last armful of fuel, and the besieged had only five charges left.

Glenarvan cast about him a sorrowful glance. He thought of the child who was there, of his companions, of all whom he loved. Robert said nothing; perhaps the danger did not appear imminent to his hopeful spirit. But Glenarvan pictured to himself that terrible event, now apparently inevitable, the being devoured alive! He was not master of his emotion; he drew the child to his breast, he clasped him to his heart, he pressed his lips to his forehead, while tears flowed from his eyes.