The trapper and the Doctor were not, however, entirely so uninstructed as to the nature of the extraordinary sounds.

The latter recognised in them the well-known voice of his own beast, and he was about to rush up the little bank, which confined the current, with all the longings of strong affection, when Asinus himself galloped into view, at no great distance, urged to the unnatural gait by the impatient and brutal Weucha, who bestrode him.
The eyes of the Teton, and those of the fugitives met.

The former raised a long, loud, and piercing yell, in which the notes of exultation were fearfully blended with those of warning.

The signal served for a finishing blow to the discussion on the merits of the bark, the Doctor stepping as promptly to the side of the old man, as if a mental mist had been miraculously removed from his eyes.

In another instant the steed of the young Pawnee was struggling with the torrent.
The utmost strength of the horse was needed to urge the fugitives, beyond the flight of arrows that came sailing through the air, at the next moment.