Ashman had not been gone long, when Ziffak made an excuse to withdraw, saying he meant to find out, if he could, where Waggaman and Burkhardt were hiding. He counselled the Professor and the New Englander to stay where they were until his return, which he promised should not be long deferred.
Neither Grimcke nor Long dreamt of the object of their dusky friend in leaving, and as the mother of the Murhapa reappeared about that time and started a fire, with a view of preparing their evening meal, they concluded that the best thing for them was to follow the advice of the brave fellow.
The instant Ziffak was on the outside of his own house, he became as alert as a cat scenting a mouse. He held his ponderous javelin with its poisoned tip in his right hand, and he looked keenly about in the gathering gloom.
A warrior stopped in front of him and made a respectful inquiry about the white men. Ziffak uttered such an angry reply and raised his weapon so menacingly that the native skurried away in terror of his life.
All at once the keen black eyes caught sight of a small, petite figure as it vanished in the darkness. He smiled, for he recognized Ariel on her way to the upper end of the village. He knew on the instant what that meant.
Then the penetrating gaze outlined the figure of a man, sneaking like a wild animal, down the river bank. He was seen only faintly, but he was equally sure of his identity. It was Burkhardt, one of the hated white men that had poisoned the mind of his brother and caused him to forget he was a Murhapa, whose word should be sacred.
An exultant gleam came into the dusky face, as he stole forward in the same direction that the convict took. The action of the miscreant showed that he was following some prey, and who was it as likely to be as the white man that was abroad and was held in such detestation by the scoundrel?
Burkhardt, in one respect, acted precisely as did his intended victim. The latter was so absorbed in his own delicious thoughts, that, after that hurried glance around him, he did not once again look to the rear. So Burkhardt, never once dreaming that he was under surveillance, kept his gloating eyes fixed on the shadowy figure in front, without looking to see that while the man was hunting the tiger another tiger was not hunting him.
Being a slight distance to the rear of the convict, Ziffak could not see the form in front of him with equal distinctness, but the faint glimpse which he caught was all he needed.
Thus the strange procession passed up the western bank of the calmly flowing Xingu. Fred Ashman moving slowly and lost in reverie, Burkhardt prowling like a wild beast behind him, with Ziffak clinging to the heels of the wretch as if he were his very shadow.