again, the instant I moved my foot, clear, and keen, and imperative, sounded the voice! It was no longer possible to doubt its meaning. It commanded me to stand still—to wait—to watch—to listen! Had it cried "Listen! Do not move!" I could not have understood it better. Trying as the suspense was, I now felt powerless to escape. Something very terrible, I felt convinced, was about to happen, either to destroy or to release me from the spell that held me.
And while I stood thus rooted to the ground, the sweat standing in large drops on my forehead, all at once close to me sounded a cry, fine and clear at first, and rising at the end to a shriek so loud, piercing, and unearthly in character that the blood seemed to freeze in my veins, and a despairing cry to heaven escaped my lips; then, before that long shriek expired, a mighty chorus of thunderous voices burst forth around me; and in this awful tempest of sound I trembled like a leaf; and the leaves on the trees were agitated as if by a high wind, and the earth itself seemed to shake beneath my feet. Indescribably horrible were my sensations at that moment; I was deafened, and would possibly have been maddened had I not, as by a miracle, chanced to see a large araguato on a branch overhead, roaring with open mouth and inflated throat and chest.
It was simply a concert of howling monkeys which had so terrified me! But my extreme fear was not strange in the circumstances; since everything that had led up to the display, the gloom and silence, the period of suspense and my heated imagination, had raised my mind to the
