force, going to the spot, had found the
children's suspicions confirmed. The unclothed body of a man, partially
consumed by fire and lacking the head, as well as otherwise mutilated in
a seemingly aimless way, had been doubled up and sewn in the sack.
Weights had evidently been attached to the horrible bundle, but had in
some manner become detached. So far no clue whatever, either as to the
identity of the murdered man, or that of the murderer, had been brought
to light. The body had been in the water for some days, but might still
have been recognisable had the head not been removed.

The horror of my dream on Christmas Eve came back to me as I read. No
doubt there had been many river mysteries and "shocking discoveries" in
the Thames, and perhaps I had read of them, dismissing them from my mind
with the alacrity with which one does rid one's thoughts of such sordid
tragedies, when they do not happen to concern oneself or one's
acquaintances. But this tragedy I could not so dismiss.

I could even picture the very spot where the boys must have seen the
sack caught among the dry and rattling reeds. "A small backwater leading
out of a larger one, between Great Marlow and Purley Lock." The larger
one was doubtless that on which Carson Wildred's house was situated; the
smaller one--a mere alley of water, leading away under a drooping tangle
of willow and chestnut branches--one had to pass in walking from Purley
to the House by the Lock. I was sure, as I recalled the place in memory,
that the scene of the discovered mystery could have been no other than
this.

Having read to the end, I folded up the paper and put it away in a
pocket of my greatcoat for future reference. Then I began walking slowly
on towards the Savoy Hotel.

Had it not been for the odd chance which had induced two boys to stroll,
in the middle of winter, along the bank of an insignificant outlet of a
Thames backwater, what a fine place, I told myself, this would have been
for the concealment of a crime! Even without the weights, which had
probably become detached from the sack by tangling among the roots under
the surface of the water, the body might have been expected to remain
hidden for months--at least, till the coming of the spring.

Then, as I so reflected, my mind turned to darker thoughts. Had a crime
been committed by the inhabitants of the House by the Lock, what a
convenient hiding-place would that adjacent waterway have been! I had no
reaso