The natives followed him to where a great tree overhung the palisade, and as Tarzan leaped for a lower branch and disappeared into the foliage above, precisely after the manner of Manu, the monkey, there were loud exclamations of surprise and astonishment. For half an hour they called to him to return, but as he did not answer them they at last desisted, and sought the sleeping-mats within their huts.
Source: wiktionary