sufficient military escort, and every night pitching his
tent in a different situation, until at length he had arrived
on the very margin of the vast central deserts of Asia.[8]
Here he was standing by accident, at an opening of his
pavilion, enjoying the morning sunshine, when suddenly 15
to the westward there arose a vast, cloudy vapor, which
by degrees expanded, mounted, and seemed to be slowly
diffusing itself over the whole face of the heavens. By
and by this vast sheet of mist began to thicken toward
the horizon and to roll forward in billowy volumes. The 20
Emperor's suite assembled from all quarters; the silver
trumpets were sounded in the rear; and from all the
glades and forest avenues began to trot forwards towards
the pavilion the yagers--half cavalry, half huntsmen--who
composed the imperial escort. Conjecture was on 25
the stretch to divine the cause of this phenomenon; and
the interest continually increased in proportion as simple
curiosity gradually deepened into the anxiety of uncertain
danger. At first it had been imagined that some vast
troops of deer or other wild animals of the chase had
been disturbed in their forest haunts by the Emperor's
movements, or possibly by wild beasts prowling for prey,
and might be fetching a compass by way of re-entering
the forest grounds at some remoter points, secure from 5
molestation. But this conjecture was dissipated by the
slow increase of the cloud and the steadiness of its
motion. In the course of two hours the vast phenomenon
had advanced to a point which was judged to be
within five miles of the spectators, though all calculations 10
of distance were difficult, and often fallacious, when