Another thought which the advent of the cave inspired was the possibility of losing our pursuer at this bewildering focus of large galleries. There were several of the blind albino penguins in the open space, and it seemed clear that their fear of the oncoming entity was extreme to the point of unaccountability. If at that point we dimmed our torch to the very lowest limit of travelling need, keeping it strictly in front of us, the frightened squawking motions of the huge birds in the mist might muffle our footfalls, screen our true course, and somehow set up a false lead. Amidst the churning, spiralling fog the littered and unglistening floor of the main tunnel beyond this point, as differing from the other morbidly polished burrows, could hardly form a highly distinguishing feature; even, so far as we could conjecture, for those indicated special senses which made the Old Ones partly though imperfectly independent of light in emergencies. In fact, we were somewhat apprehensive lest we go astray ourselves in our haste. For we had, of course, decided to keep straight on toward the dead city; since the consequences of loss in those unknown foothill honeycombings would be unthinkable.
The fact that we survived and emerged is sufficient proof that the thing did take a wrong gallery whilst we providentially hit on the right one. The penguins alone could not have saved us, but in conjunction with the mist they seem to have done so. Only a benign fate kept the curling vapours thick enough at the right moment, for they were constantly shifting and threatening to vanish. Indeed, they did lift for a second just before we emerged from the nauseously re-sculptured tunnel into the cave; so that we actually caught one first and only half-glimpse of the oncoming entity as we cast a final, desperately fearful glance backward before dimming the torch and mixing with the penguins in the hope of dodging pursuit. If the fate which screened us was benign, that which gave us the half-glimpse was infinitely the opposite; for to that flash of semi-vision can be traced a full half of the horror which has ever since haunted us.
Our exact motive in looking back again was perhaps no more than the immemorial instinct of the pursued to gauge the nature and course of its pursuer; or perhaps it was an automatic attempt to answer a subconscious question raised by one of our senses. In the midst of our flight, with all our faculties centred on the problem of escape, we were in no condition to observe and analyse details; yet even so our latent brain-cells must have wondered at the message brought them by our nostrils. Afterward we realised what it was—that our retreat from the foetid slime-coating on those headless obstructions, and the coincident approach of the pursuing entity, had not brought us the exchange of stenches which logic called for. In the neighbourhood of the prostrate things that new and lately unexplainable foetor had been wholly dominant; but by this time it ought to have largely given place to the nameless stench associated with those others. This it had not done—for instead, the newer and less bearable smell was now virtually undiluted, and growing more and more poisonously insistent each second.
So we glanced back—simultaneously, it would appear; though no doubt the incipient motion of one prompted the imitation of the other. As we did so we flashed both torches full strength at the momentarily thinned mist; either from sheer primitive anxiety to see all we could, or in a less primitive but equally unconscious effort to dazzle the entity before we dimmed our light and dodged among the penguins of the labyrinth-centre ahead. Unhappy act! Not Orpheus himself, or Lot’s wife, paid much more dearly for a backward glance. And again came that shocking, wide-ranged piping—