I tried to keep all my skill and self-possession about me, and stared at the sector of reddish farther sky betwixt the walls of the pass.
But Danforth, released from his piloting and keyed up to a dangerous nervous pitch, could not keep quiet. I felt him turning and wriggling about as he looked back at the terrible receding city, ahead at the cave-riddled, cube-barnacled peaks, sidewise at the bleak sea of snowy, rampart-strown foothills, and upward at the seething, grotesquely clouded sky.
It was then, just as I was trying to steer safely through the pass, that his mad shrieking brought us so close to disaster, by shattering my tight hold on myself and causing me to fumble helplessly with the controls for a moment. A second afterward my resolution triumphed and we made the crossing safely—yet I am afraid that Danforth will never be the same again.
I have said that Danforth refused to tell me what final horror made him scream out so insanely—a horror which, I feel sadly sure, is mainly responsible for his present breakdown. We had snatches of shouted conversation above the wind’s piping and the engine’s buzzing as we reached the safe side of the range and swooped slowly down toward the camp, but that had mostly to do with the pledges of secrecy we had made as we prepared to leave the nightmare city.
All that Danforth has ever hinted is that the final horror was a mirage. It was not, he declares, anything connected with the cubes and caves of those echoing, vaporous, wormily honeycombed mountains of madness which we crossed; but a single fantastic, demonic glimpse, among the churning westward zenith clouds, of what lay back of those other violet westward mountains which the Old Ones had shunned and feared.
He has on rare occasions whispered disjointed and irresponsible things about “the black pit,” “the carven rim,” “the proto-Shoggoths,” “the