Travels in the Tibet (English Edition)

The mule caravan, now in front of us, was also the sport of the mirage:
we saw it double as if it also were passing beside a lake.

At last we reached the spur and rested there awhile. Robert climbed up
the side to look for the expected lake; as he came down the detritus
began to move, our horses were frightened and wildly stampeded towards
the east. Fortunately, they followed the track of the caravan, which was
in the act of pitching the camp.