I did not sense its
near presence until it charged. I cannot understand it."

"It is not strange," said Pan-at-lee. "That is one of the peculiarities
of the gryf--it is said that man never knows of its presence until it
is upon him--so silently does it move despite its great size."

"But I should have smelled it," cried Tarzan, disgustedly.

"Smelled it!" ejaculated Pan-at-lee. "Smelled it?"

"Certainly. How do you suppose I found this deer so quickly? And I
sensed the gryf, too, but faintly as at a great distance." Tarzan
suddenly ceased speaking and looked down at the bellowing creature
below them--his nostrils quivered as though searching for a scent.
"Ah!" he exclaimed. "I have it!"

"What?" asked Pan-at-lee.

"I was deceived because the creature gives off practically no odor,"
explained the ape-man. "What I smelled was the faint aroma that
doubtless permeates the entire jungle because of the long presence of
many of the creatures--it is the sort of odor that would remain for a
long time, faint as it is.

"Pan-at-lee, did you ever hear of a triceratops? No? Well this thing
that you call a gryf is a triceratops and it has been extinct for
hundreds of thousands of years. I have seen its skeleton in the museum
in London and a figure of one restored. I always thought that the
scientists who did such work depended principally upon an overwrought
imagination, but I see that I was wrong. This living thing is not an
exact counterpart of the restoration that I saw; but it is so similar
as to be easily recognizable, and then, too, we must remember that
during the ages that have elapsed since the paleontologist's specimen
lived many changes might have been wrought by evolution in the living
line that has quite evidently persisted in Pal-ul-don."

"Triceratops, London, paleo--I don't know what you are talking about,"
cried Pan-at-lee.

Tarzan smiled and threw a piece of dead wood at the face of the angry
creature below them. Instantly the great bony hood over the neck was
erected and a mad bellow rolled upward from the gigantic body. Full
twenty feet at the shoulder the thing stood, a dirty slate-blue in
color except for its yellow face with the blue bands encircling the
eyes, the red hood with the yellow lining and the yellow belly. The
three parallel lines of bony protuberances down the back gave a further
touch of color to the body, those following the line of the spine being
red, while those on either side are ye