I made over twenty miles that day, for I was now hardened to
fatigue and accustomed to long hikes, having spent considerable
time hunting and exploring in the immediate vicinity of camp.
A dozen times that day was my life threatened by fearsome creatures
of the earth or sky, though I could not but note that the farther
north I traveled, the fewer were the great dinosaurs, though they
still persisted in lesser numbers. On the other hand the
quantity of ruminants and the variety and frequency of
carnivorous animals increased. Each square mile of Caspak
harbored its terrors.

At intervals along the way I found bits of muslin, and often they
reassured me when otherwise I should have been doubtful of the trail
to take where two crossed or where there were forks, as occurred
at several points. And so, as night was drawing on, I came to the
southern end of a line of cliffs loftier than any I had seen before,
and as I approached them, there was wafted to my nostrils the pungent
aroma of woodsmoke. What could it mean? There could, to my mind,
be but a single solution: man abided close by, a higher order of
man than we had as yet seen, other than Ahm, the Neanderthal man.
I wondered again as I had so many times that day if it had not been
Ahm who stole Lys.

Cautiously I approached the flank of the cliffs, where they
terminated in an abrupt escarpment as though some all powerful
hand had broken off a great section of rock and set it upon the
surface of the earth. It was now quite dark, and as I crept
around the edge of the cliff, I saw at a little distance a great
fire around which were many figures--apparently human figures.
Cautioning Nobs to silence, and he had learned many lessons in