obviously caused by her stepfather hastily closing the door of his safe
upon its terrible occupant. Having once made up my mind, you know the
steps which I took in order to put the matter to the proof. I heard the
creature hiss as I have no doubt that you did also, and I instantly lit
the light and attacked it.
With the result of driving it through the ventilator.
And also with the result of causing it to turn upon its master at the
other side. Some of the blows of my cane came home and roused its
snakish temper, so that it flew upon the first person it saw. In this
way I am no doubt indirectly responsible for Dr. Grimesby Roylott s
death, and I cannot say that it is likely to weigh very heavily upon my
conscience.
IX. THE ADVENTURE OF THE ENGINEER S THUMB
Of all the problems which have been submitted to my friend, Mr.
Sherlock Holmes, for solution during the years of our intimacy, there
were only two which I was the means of introducing to his notice that
of Mr. Hatherley s thumb, and that of Colonel Warburton s madness. Of
these the latter may have afforded a finer field for an acute and
original observer, but the other was so strange in its inception and so
dramatic in its details that it may be the more worthy of being placed
upon record, even if it gave my friend fewer openings for those
deductive methods of reasoning by which he achieved such remarkable
results. The story has, I believe, been told more than once in the
newspapers, but, like all such narratives, its effect is much less
striking when set forth _en bloc_ in a single half-column of print than
when the facts slowly evolve before your own eyes, and the mystery
clears gradually away as each new discovery furnishes a step which
leads on to the complete truth. At the time the circumstances made a
deep impression upon me, and the lapse of two years has hardly served
to weaken the effect.
It was in the summer of 89, not long after my marriage, that the
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