es almost fabulous accounts of
the instinct of these animals. I knew that, although water baffled
their scent, they yet could recognize in some manner the approach of any
person across water as readily as by land; and of the vigilance of
all dogs by night every traveller among Southern plantations has ample
demonstration. I was now so near that I could dimly see the figures of
men moving to and fro upon the end of the causeway, and could hear the
dull knock, when one struck his foot against a piece of limber.
As my first object was to ascertain whether there were sentinels at that
time at that precise point, I saw that I was approaching the end of my
experiment Could I have once reached the causeway unnoticed, I could
have lurked in the water beneath its projecting timbers, and perhaps
made my way along the main shore, as I had known fugitive slaves to do,
while coming from that side. Or had there been any ripple on the water,
to confuse the aroused and watchful eyes, I could have made a circuit
and approached the causeway at another point, though I had already
satisfied myself that there was only a narrow channel on each side
of it, even at high tide, and not, as on our side, a broad expanse of
water. Indeed, this knowledge alone was worth all the trouble I had
taken, and to attempt much more than this, in the face of a curiosity
already roused, would have been a waste of future opportunities. I could
try again, with the benefit of this new knowledge, on a point where the
statements of the negroes had always been contradictory.
Resolving, however, to continue the observation a very little longer,
since the water felt much warmer than I had expected, and there was no
sense of chill or fatigue, I grasped at some wisps of straw or rushes
that floated near, gathering them round my face a little, and then
drifting nearer the wharf in what seemed a sort of eddy was able,
without creating further alarm, to make some additional observations on
points which it is not best now to particularize. Then, turning my back
upon the mysterious shore which had thus far lured me, I sank softly
below the surface, and swam as far as I could under water.
During this unseen retreat, I heard, of course, all manner of gurglings
and hollow reverberations, and could fancy as many rifle-shots as I
pleased. But on rising to the surface all seemed quiet, and even I did
not create as much noise as I should have expected. I was now at a safe
dist
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