As the tedious road wound on over basalt, basaltic lava, and amygdaloid, the sun, waxing momentarily more intensely powerful, was reflected with destructive and stifling fervour from slates of snow-white sea-limestone borne on their tops. Still elevated far above the level of the ocean, a number of fossil shells, of species now extinct, were discovered; a deep cleft by the wayside, presenting the unequivocal appearance of the lower crater of a volcano, situated on the high basaltic range above, whence the lava stream had been disgorged through apertures burst in the rocks, but which had re-closed after the violence of the eruption had subsided. Dafari, a wild broken chasm at some distance from the road, usually contains abundance of rain-water in its rocky pool, but having already been long drained to the dregs, it offered no temptation to halt. Another most severe and trying declivity had therefore to be overcome, ere the long and sultry march was at an end. It descended by craggy precipices many hundred feet below the level of the sea, to the small close sandy plain of Mooya, on the borders of the Lake--a positive _Jehannam_, where the gallant captain of the "Constance" [Lieutenant Wilmot Christopher, I N] had already been some hours ensconced under the leafless branches of one poor scrubby thorn, which afforded the only screen against the stifling blast of the sirocco, and the merciless rays of the refulgent orb overhead. Adyli, a deep mysterious cavern at the further extremity of the plain, is believed by the credulous to be the shaft leading to a subterranean gallery which extends to the head of Goobut el Kharab. Deeni, most expert and systematic of liars, even went so far as to assert that he had seen through it the waters of the bay, although he admitted it to be the abode of "gins and efreets," whose voices are heard throughout the night, and who carry off the unwary traveller to devour him without remorse. The latest instance on record was of one Shehem, who was compelled by the weariness of his camel to fall behind the caravan, and, when sought by his comrades, was nowhere to be found, notwithstanding that his spear and shield had remained untouched. No tidings of the missing man having been obtained to the present hour, he is believed by his disconsolate friends to have furnished a meal to the gins in Adyli; but it seems not improbable that some better clue to his fate might be afforded by the Adrusi, an outcast clan of the Debeni, acknowledging no chief, though recognising in some respects the authority of the Sultan of Tajura, and who wander over the country for evil, from Sagallo to the Great Salt Lake.