had imagined that I had reached the end of my adventures, but a very
unexpected occurrence showed me that there were surprises still in store
for me. A huge rock, falling from above, boomed past me, struck the
path, and bounded over into the chasm. For an instant I thought that
it was an accident, but a moment later, looking up, I saw a man's head
against the darkening sky, and another stone struck the very ledge upon
which I was stretched, within a foot of my head. Of course, the meaning
of this was obvious. Moriarty had not been alone. A confederate--and
even that one glance had told me how dangerous a man that confederate
was--had kept guard while the Professor had attacked me. From a
distance, unseen by me, he had been a witness of his friend's death and
of my escape. He had waited, and then making his way round to the top of
the cliff, he had endeavoured to succeed where his comrade had failed.

"I did not take long to think about it, Watson. Again I saw that grim
face look over the cliff, and I knew that it was the precursor of
another stone. I scrambled down on to the path. I don't think I could
have done it in cold blood. It was a hundred times more difficult than
getting up. But I had no time to think of the danger, for another stone
sang past me as I hung by my hands from the edge of the ledge. Halfway
down I slipped, but, by the blessing of God, I landed, torn and
bleeding, upon the path. I took to my heels, did ten miles over the
mountains in the darkness, and a week later I found myself in Florence,
with the certainty that no one in the world knew what had become of me.

"I had only one confidant--my brother Mycroft. I owe you many apologies,
my dear Watson, but it was all-important that it should be thought I
was dead, and it is quite certain that you would not have written so
convincing an account of my unhappy end had you not yourself thought
that it was true. Several times during the last three years I have taken