Having reached, completely unperceived, the inclined portion of the tree, which almost touched the roof of the cabin, he was only separated from the window by a distance of about a foot.  Cautiously advancing his head, he looked down into the interior, to see how he might best find an entrance.

At sight of Djalma in his deep sleep, the Thug’s bright eyes glittered with increased brilliancy; a nervous contraction, or rather a mute, ferocious laugh, curling the corners of his mouth, drew them up towards the cheekbones, and exposed rows of teeth, filed sharp like the points of a saw, and dyed of a shining black.

Djalma was lying in such a manner and so near the door of the ajoupa, which opened inwards, that, were it moved in the least, he must be instantly awakened.  The Strangler, with his body still sheltered by the tree, wishing to examine more attentively the interior of the cabin, leaned very forward, and in order to maintain his balance, lightly rested his hand on the ledge of the opening that served for a window.  This movement shook the large cactus-flowers, within which the little serpent lay curled, and, darting forth it twisted itself rapidly round the wrist of the Strangler.  Whether from pain or surprise, the man uttered a low cry; and as he drew back swiftly, still holding by the trunk of the tree, he perceived that Djalma had moved.

The young Indian, though retaining his supine posture, had half opened his eyes, and turned his head towards the window, whilst his breast heaved with a deep-drawn sigh, for, beneath that thick dome of moist verdure, the concentrated heat was intolerable.

Hardly had he moved, when, from behind the tree, was heard the shrill, brief, sonorous note, which the bird of paradise titters when it takes its flight—­a cry which resembles that of the pheasant.  This note was soon repeated, but more faintly, as though the brilliant bird were already at a distance.  Djalma, thinking he had discovered the cause of the noise which had aroused him for an instant, stretched out the arm upon which his head had rested, and went to sleep again, with scarcely any change of position.

For some minutes, the most profound silence once more reigned in this solitude, and everything remained motionless.

The Strangler, by his skillful imitation of the bird, had repaired the imprudence of that exclamation of surprise and pain, which the reptile bite had forced from him.  When he thought all was safe, he again advanced his head, and saw the young Indian once more plunged in sleep.  Then he descended the tree with the same precautions, though his left hand was somewhat swollen from the sting of the serpent, and disappeared in the jungle.

At that instant a song of monotonous and melancholy cadence was heard in the distance.  The Strangler raised himself, and listened attentively, and his face took an expression of surprise and deadly anger.  The song came nearer and nearer to the cabin, and, in a few seconds, an Indian, passing through an open space in the jungle, approached the spot where the Thug lay concealed.