After leaving the town and marching for a mile or so along the oasis,
accompanied by a mob of the Zeus armed with spears and bows, we were
led by the bereaved chief, who also acted as tracker, out into the
surrounding sands. The desert here, although I remembered it well
enough, was different from any that we had yet encountered upon this
journey, being composed of huge and abrupt sand-hills, some of which
were quite three hundred feet high, separated from each other by deep,
wind-cut valleys.

For a distance, while they were within reach of the moist air of the
oasis, these sand-mountains produced vegetation of various sorts.
Presently, however, we passed out into the wilderness proper, and for
a while climbed up and down the steep, shifting slopes, till from the
crest of one of them the chief pointed out what in South Africa is
called a pan, or _vlei_, covered with green reeds, and explained by
signs that in these lay the lions. Descending a steep declivity, we
posted ourselves, I at the top, and Higgs and Orme a little way down
either side of this _vlei_. This done, we dispatched the Zeus to beat
it out towards us, for although the reeds grew thick along the course
of the underground water, it was but a narrow place, and not more than a
quarter of a mile in length.

Scarcely had the beaters entered the tall reeds, evidently with
trepidation, for a good many of them held back from the adventure,
when a sound of loud wailing informed us that something had happened. A
minute or two later we saw two of them bearing away what appeared to be
the mangled remains of the chief's son who had been carried off on the
previous night.