Conan lay still, enduring the weight of his chains and the despair of his position with the stoicism of the wilds that had bred him. He did not move, because the jangle of his chains, when he shifted his body, sounded startlingly loud in the darkness and stillness, and it was his instinct, born of a thousand wilderness-bred ancestors, not to betray his position in his helplessness. This did not result from a logical reasoning process; he did not lie quiet because he reasoned that the darkness hid lurking dangers that might discover him in his helplessness. Xaltotun had assured him that he was not to be harmed, and Conan believed that it was in the man’s interest to preserve him, at least for the time being. But the instincts of the wild were there, that had caused him in his childhood to lie hidden and silent while wild beasts prowled about his covert.

REH-The Hour of the Dragon