For Chaffer knew now what the danger was--it was a man; and he could,
with his wonderful power of scent, smell him, although he was still a
great distance away. Once having realized that it was a man, Chaffer
lost no time, but made his way at once up the steepest crag he could
find. It was much easier for him to go up than down, for his legs were
adapted for this purpose, The hind ones being much longer than the
front ones.

His small, neat feet were formed for climbing; his forefeet had very
sharp hoofs, which, when descending, Chaffer would dig into the ground
to gain a foothold, and his hind feet had curious, false hoofs. That
is to say, the outer hoofs were higher than the soles, and this
enabled him to have a grip on the slightest notch or projection on the
face of the rocks, so that it was almost impossible for him to slip.
In descending the rocks, he would place his forefeet close together
and push them in front of him; he could then slide down the face of an
almost perpendicular cliff with the greatest ease and safety, and
alight at the bottom without so much as a scratch.

In going up a very steep hill, he would stand up on his hind legs, put
his forefeet on some narrow shelf or ledge of rock, and then, with a
sharp little bound, draw his body up, and stand with all four feet on
a space scarcely big enough for a full-grown man.

Chaffer tried this plan now, and with good effect for a time, but he
could smell the man coming nearer and nearer, and began to be terribly
frightened. Timid and nervous to a wonderful degree, and of a
cautious, suspicious nature, Chaffer's excitement grew intense, and
his small, pointed ears quivered painfully. On he went, never stopping