I went down for a long time. The stairway turned and twisted in the rock, and the bobbing forms ahead were my only relief from the monotony of the interminable descent. And at last, deep underground, the long stairway ended, and I gazed over the shoulders of my guides at the great door that barred my path. It was roughly chiseled from the solid stone, and upon it were curious and strangely disquieting carvings, symbols which I did not recognize. It swung open, and I passed through and paused, staring about me through a gray sea of mist.