"We ought to be glad these niggers didn't try conclusions with their knives in that fight in the dark," said Denviers, as I got close to him and the Arab. Then, observing the latter's injured arm, he added: "You seem to have got the worst of the encounter with one of them, Hassan----"
"Not so, by the Koran!" answered the Arab, promptly. "He who dealt that blow felt the edge of my sword, and lived but a second after he did it."
"Where are we being taken to, do you think, Hassan?" I asked, looking in surprise at the changing colours of the walls of the passage, which just there were tinted a bluish-grey, then crimsoned a little further on, until the long cave seemed to terminate in an enormous hollow surrounded by blood-red rocks which rose precipitously upwards.
"The sahib will soon see for himself," answered the Arab. "The savage tribe has chosen a safe retreat where none would expect to find living people, for, see! before us is the jagged side of a crater!"
We emerged from the cave to observe in front of us the cause of the intense heat which had been so oppressive while we were in it. A white cloud of smoke rose from the funnel-like hollow, and occasionally flickering red flames shot up and turned this to the same hue, while at times the cloud wore a blue colour, matching the changing tints of the lake of fire below. Round the interior of the great crater in which we were ran a rugged path of broken masses of rock, between which streams of lava lay, and over them we had to pass. Even as we went along, scarcely able to breathe, we saw a huge fragment of rock crash down into the depths below. This was followed by a grinding sound and a rumble like thunder; then high above us shot a shower of red-hot lava and stones, while we crouched under a projecting shelf of black basalt, and forgot that we were prisoners in the midst of such an impressive scene. When the stream of fire which darted upwards had somewhat subsided, our captives urged us forward, and on we went, tumbling and slipping over the dangerous rocks, which threatened every instant to give way beneath our feet. Even the savages became exceedingly cautious as we wound our way around the crater, and seemed to be getting nearer and nearer still to the molten fire below.