When darkness had finally settled Tarzan approached the gate, and throwing the noose of his grass rope over one of the carved lions that capped the gate posts, ascended quickly to the summit of the wall, from where he dropped lightly into the garden below. To insure an avenue for quick escape in the event that he found La, he unlatched the heavy gates and swung them open. Then he crept stealthily toward the ivy-covered east tower, which he had chosen after a day of investigation as offering easiest ingress to the palace. The success of his plan hinged largely upon the age and strength of the ivy which grew almost to the summit of the tower, and, to his immense relief, he found that it would easily support his weight. Far above the ground, near the summit of the tower, he had seen from the trees surrounding the palace an open window, which, unlike the balance of those in this part of the palace, was without bars. Dim lights shone from several of the tower windows, as from those of other parts of the palace. Avoiding these lighted apertures, Tarzan ascended quickly, though carefully, toward the unbarred window above, and as he reached it and cautiously raised his eyes above the level of the sill, he was delighted to find that it opened into an unlighted chamber, the interior of which, however, was so shrouded in darkness that he could discern nothing within. Drawing himself carefully to the level of the sill he crept quietly into the apartment beyond. Groping through the blackness, he cautiously made the rounds of the room, which he found to contain a carved bedstead of peculiar design, a table, and a couple of benches. Upon the bedstead were stuffs of woven material, thrown over the softly tanned pelts of antelopes and leopards. Opposite the window through which he had entered was a closed door. This he opened slowly and silently, until, through a tiny aperture he could look out upon a dimly lighted corridor or circular hallway, in the center of which was an opening about four feet in diameter, passing through which and disappearing beyond a similar opening in the ceiling directly above was a straight pole with short crosspieces fastened to it at intervals of about a foot—quite evidently the primitive staircase which gave communication between the various floors of the tower. Three upright columns, set at equal intervals about the circumference of the circular opening in the center of the floor helped to support the ceiling above. Around the outside of this circular hallway there were other doors, similar to that opening into the apartment in which he was.