Oh! the heat of that narrow hole deep in the bowels of the rock, and the reek of the stagnant air which sometimes was so bad that the lights would scarcely burn.  Indeed, after a hundred feet had been completed, we thought that it would be impossible to proceed, since two men died of asphyxiation and the others, although they were good fellows enough, refused to return into the tunnel.  At length, however, Orme and Japhet persuaded some of the best of them to do so, and shortly after this the atmosphere improved very much, I suppose because we cut some cranny or shaft which communicated with the open air.

There were other dangers also, notably of the collapse of the whole roof where the rock was rotten, as we found it to be in places.  Then it proved very hard to deal with the water, for once or twice we struck small springs impregnated with copper or some other mineral that blistered the feet and skin, since every drop of this acid water had to be carried out in wooden pails.  That difficulty we overcame at last by sinking a narrow well down to the level of the ancient tunnel of which I have spoken as having been shaken in by the earthquake.

Thus we, or rather Oliver and Quick with the Mountaineers, toiled on.  Higgs did his best, but after a while proved quite unable to bear the heat, which became too much for so stout a man.  The end of it was that he devoted himself to the superintendence of the removal of the rubbish into the Tomb of Kings, the care of the stores and so forth.  At least that was supposed to be his business, but really he employed most of his time in drawing and cataloguing the objects of antiquity and the groups of bones that were buried there, and in exploring the remains of the underground city.  In truth, this task of destruction was most repellent to the poor Professor.

“To think,” he said to us, “to think that I, who all my life have preached the iniquity of not conserving every relic of the past, should now be employed in attempting to obliterate the most wonderful object ever fashioned by the ancients!  It is enough to make a Vandal weep, and I pray heaven that you may not succeed in your infamous design.  What does it matter if the Abati are wiped out, as lots of better people have been before them?  What does it matter if we accompany them to oblivion so long as that noble sphinx is preserved to be the wonder of future generations?  Well, thank goodness, at any rate I have seen it, which is more, probably, than any of you will ever do.  There, another brute is dumping his rubbish over the skull of No. 14!”

Thus we laboured continually, each at his different task, for the work in the mine never stopped, Oliver being in charge during the day and Quick at night for a whole week, since on each Sunday they changed with their gangs, Quick taking the day shift and Oliver the night, or vice versa.  Sometimes Maqueda came down the cave to inspect progress, always, I noticed, at those hours when Oliver happened to be off duty.  Then on this pretext or on that they would wander away together to visit I know not what in the recesses of the underground city, or elsewhere.  In vain did I warn them that their every step was dogged, and that their every word and action were noted by spies who crept after them continually, since twice I caught one of these gentry in the act.  They were infatuated, and would not listen.