John thanked him for his proposal, though Ellen seemed unwilling to remain behind. We also did not like to leave her. At last John suggested that Domingos should remain also. The recluse pressed the point with more warmth than I should have expected, and at last Ellen agreed to do as was proposed. She was certainly better off in a well-built hut than she had been for some time, and strange and eccentric as the recluse appeared, still we felt that he was disposed to assist us to the best of his power.

Our early breakfast over, John and I, shouldering our rifles, followed by True, set off with the recluse. Ellen looked rather sad as we were going.

“You will find poor Arthur? I know you will,” she said in a low voice to me. “I thought of him a great deal last night, out in the fierce tempest, with only two young Indians to assist him; and he is not so strong as you are, and has no gun to defend himself. I could not help thinking of fierce jaguars roaming in search of prey, or those dreadful boas, or the anacondas we have heard of.”

“Oh, drive all such thoughts from your mind, Ellen,” I answered. “Arthur, if not so strong, has plenty of sense and courage; and, depend upon it, the Indians will have found some hollow tree, or will have built a hut for themselves, in which they would have taken shelter during the night. I should not have minded changing places with Arthur. It is all right. We will bring him back safe enough.”

With these words I hurried after John and the recluse. We had not gone far, when I saw them looking up into a tree. True darted forward and began to bark, when, in return, a chorus of terrific barks, howls, and screeches proceeded from the higher branches, and there I saw seated a group of several large monkeys with long tails and most hideous faces. Every instant they threw up their heads, and the fearful sounds I had heard issued forth from them. I could scarcely suppose that animals of such a size could make so much noise.

“You have there some of my friends who serenaded you last night,” observed the recluse, when, after a few minutes, the monkeys ceased howling. “These are the mycétes, or ursine howlers. The creature is called in this country araguato, and sometimes by naturalists the alouatte. It is known also as ‘the preacher.’ If he could discourse of sin and folly, and point out to benighted man the evil of his ways, he might howl to some purpose but his preaching is lost on the denizens of the forest, who know nothing of sin, and are free from the follies of the world. Observe that with how little apparent difficulty he gives forth that terrific note. It is produced by a drum-shaped expansion of the larynx. The hyoid bone, which in man is but slightly developed, is in these monkeys very large. It gives support to the tongue, being attached to the muscles of the neck. The bony drum communicates with the wind-pipe, and enables them to utter those loud sounds.”

Had Arthur been with us, I am sure we should have indulged in a hearty laugh at the curious faces of those thick-jawed creatures as they looked down upon us inquisitively to ascertain what we were about. They were considerably larger than any we had seen; indeed, the howler is the largest monkey in the New World. The fur is of a rich bay colour, and as the sun fell upon the coats of some of them above us, they shone with a golden lustre. The thick beard which hung from the chin and neck was of a deeper hue than the body. Our friend told us that those he had caught were generally about three feet long, and that their tails in addition were of even greater length. We went on without disturbing the assemblage in their aerial seat, greatly to True’s disappointment, who would evidently have liked to measure his strength with one of them. Like the spider monkeys, they live entirely in trees, making good use of their long tails as they move about from branch to branch; indeed, the tail serves the howler for another hand. When by any chance he descends to the ground, he moves along very awkwardly, and can easily be caught, as we afterwards discovered.

Our new acquaintance was but little inclined to talk; indeed, had he been so, we could seldom have enjoyed much conversation, as we were compelled in most places to follow him in Indian file. Now and then he had to use his hatchet to clear the path, and we very frequently had to force our way by pressing aside the branches which met in front of us. Still he went on without wavering for a moment, or appearing doubtful of the direction he should take. After going on some way further, he again stopped, and pointed to a tree, the branch of which rose a few feet off. I knew by the way True barked that some creature was there; and looking more narrowly, I observed some animals clinging to the lower branches, but so nearly did they resemble the bark to which they were holding, that had they not been pointed out to me I should have passed them by. The animals turned listless glances at us, and seemed in no way disposed to move.

“There,” observed the recluse, “are creatures in every way adapted to the mode of life which they are doomed to lead. Place them in any other, and they will be miserable. You see there the ai, or three-toed sloth (the Bradypus torquatus). Though its arms, or fore-legs more properly, are nearly twice as long as the hinder ones, it finds them exactly suited for climbing the trees on which it lives. Place it on the ground, and it cannot get along. It passes its life, not above, but under the branches. When moving along, it suspends itself beneath them; when at rest, it hangs from them; and it sleeps clutching them with its strong claws, and its back hanging downwards.”

One of the creatures was hanging as our friend described; the other was on its way up the tree. It stopped on seeing us approach, and turned its round short head, with deeply sunk eyes and a large nose, to look at us. The animals had long powerful claws on all their feet. The hair was very coarse and shaggy, more like grass or moss than anything else.