"While pursuing his investigation among the natives he ran across that old legend of The Lost Tribe of the Wiramwazi Mountains, with which we are all so familiar. Immediately his mind became imbued, as have the minds of so many others, with the belief that this fable might have originated in fact and that if he could trace it down he might possibly find descendants of one of the lost tribes of Biblical history." "I know the legend well," said Tarzan, "and because it is so persistent and the details of its narration by the natives so circumstantial, I have thought that I should like to investigate it myself, but in the past no necessity has arisen to take me close to the Wiramwazi Mountains." "I must confess," continued the doctor, "that I also have had the same urge many times. I have upon two occasions talked with men of the Bagego tribe that live upon the slopes of the Wiramwazi Mountains and in both instances I have been assured that a tribe of white men dwells somewhere in the depths of that great mountain range. Both of these men told me that their tribe has carried on trade with these people from time immemorial and each assured me that he had often seen members of The Lost Tribe both upon occasions of peaceful trading and during the warlike raids that the mountaineers occasionally launched upon the Bagego. "The result was that when Erich suggested an expedition to the Wiramwazi I rather encouraged him, since he was well fitted to undertake the adventure. His knowledge of Bantu and his intensive, even though brief, experience among the natives gave him an advantage that few scholars otherwise equipped by education to profit by such an expedition would have, while his considerable experience as a mountain climber would, I felt, stand him in good stead during such an adventure. "On the whole I felt that he was an ideal man to lead such an expedition, and my only regret was that I could not accompany him, but this was impossible at the time. I assisted him in every way possible in the organization of his safari and in equipping and provisioning it. "He has not been gone a sufficient length of time to accomplish any considerable investigation and return to the mission, but recently a few of the members of his safari were reported to me as having returned to their villages. When I sought to interview them they avoided me, but rumors reached me that convinced me that all was not well with my son. I therefore determined to organize a relief expedition, but in all my district I could find only these few men who dared accompany me to the Wiramwazi Mountains, which, their legends assure them, are inhabited by malign spirits--for, as you know, they consider The Lost Tribe of the Wiramwazi to be a band of bloodthirsty ghosts. It became evident to me that the deserters of Erich's safari had spread terror through the district.