The sight below him aroused the enthusiasm of the explorer to its highest pitch. Here, doubtless, lay the secret of The Lost Tribe of the Wiramwazi and how well Nature had guarded this secret with stupendous barrier cliffs, aided by the superstitions of the ignorant black inhabitants of the outer slopes, was now easily understandable.
As far as he could see, the cliffs seemed sheer and impossible of descent, and yet he knew that he must find a way—that he would find a way down into that valley of enchantment.
Moving slowly along the rim he sought some foothold, however slight, where Nature had lowered her guard, but it was almost night and he had covered but a short distance before he found even a suggestion of hope that the canyon was hemmed at any point by other than unbroken cliffs, w
