in soft undulations around
our feet. Its tenacious grip plucked at our heels as we walked,
and when we sank into it it was as if some malignant hand was
tugging us down into those obscene depths, so grim and purposeful
was the clutch in which it held us. Once only we saw a trace that
someone had passed that perilous way before us. From amid a tuft
of cotton grass which bore it up out of the slime some dark thing
was projecting. Holmes sank to his waist as he stepped from the
path to seize it, and had we not been there to drag him out he
could never have set his foot upon firm land again. He held an
old black boot in the air. "Meyers, Toronto," was printed on the
leather inside.

"It is worth a mud bath," said he. "It is our friend Sir Henry's
missing boot."

"Thrown there by Stapleton in his flight."

"Exactly. He retained it in his hand after using it to set the
hound upon the track. He fled when he knew the game was up, still
clutching it. And he hurled it away at this point of his flight.
We know at least that he came so far in safety."

But more than that we were never destined to know, though there
was much which we might surmise. There was no chance of finding
footsteps in the mire, for the rising mud oozed swiftly in upon
them, but as we at last reached firmer ground beyond the morass
we all looked eagerly for them. But no slightest sign of them
ever met our eyes. If the earth told a true story, then Stapleton
never reached that island of refuge towards which he struggled
through the fog upon that last night. Somewhere in the heart of
the great Grimpen Mire, down in the foul slime of the huge morass
which had sucked him in, this cold and cruel-hearted man is
forever buried.

Many traces we found of him in the bog-girt island where he had
hid his savage ally. A huge driving-wheel and a shaft half-filled
with rubbish showed the position of an abandoned mine. Beside it
were the crumbling remains of the cottages of the miners, driven
away no doubt by the foul reek of the surrounding swamp. In one
of these a staple and chain with a quantity of gnawed bones
showed where the animal had been confined. A skeleton with a
tangle of brown hair adhering to it lay among the debris.

"A dog!" said Holmes. "By Jove, a curly-haired spaniel. Poor
Mortimer will never see his pet again. Well, I do not know that
this place contains any secret which we have not already
fathomed. He could hide his hound, but he could not hush