ended in failure. And so he sought up and down the verge of the stagnant water for traces of an old spoor that would have been invisible to your eyes or mine, even had we followed directly in the tracks of its maker.
As Tarzan advanced upon the gryfs he imitated as closely as he could recall them the methods and mannerisms of the Tor-o-don, but up to the instant that he stood close beside one of the huge creatures he realized that his fate still hung in the balance, for the thing gave forth no sign, either menacing or otherwise. It only stood there, watching him out of its cold, reptilian eyes and then Tarzan raised his staff and with a menacing "Whee-oo!" struck the gryf a vicious blow across the face.
The creature made a sudden side snap in his direction, a snap that did not reach him, and then turned sullenly away, precisely as it had when the Tor-o-don commanded it. Walking around to its rear as he had seen the shaggy first-man do, Tarzan ran up the broad tail and seated himself upon the creature's back, and then again imitating the acts of the Tor-o-don he prodded it with the sharpened point of his staff, and thus goading it forward and guiding it with blows, first upon one side and then upon the other, he started it down the gorge in the direction of the valley.
At first it had been in his mind only to de-
