"That is it on the dressing-table."

Sherlock Holmes took it up and opened the bureau.

"It is a noiseless lock," said he. "It is no wonder that it did
not wake you. This case, I presume, contains the coronet. We must
have a look at it." He opened the case, and taking out the diadem
he laid it upon the table. It was a magnificent specimen of the
jeweller's art, and the thirty-six stones were the finest that I
have ever seen. At one side of the coronet was a cracked edge,
where a corner holding three gems had been torn away.

"Now, Mr. Holder," said Holmes, "here is the corner which
corresponds to that which has been so unfortunately lost. Might I
beg that you will break it off."

The banker recoiled in horror. "I should not dream of trying,"
said he.

"Then I will." Holmes suddenly bent his strength upon it, but
without result. "I feel it give a little," said he; "but, though
I am exceptionally strong in the fingers, it would take me all my
time to break it. An ordinary man could not do it. Now, what do
you think would happen if I did break it, Mr. Holder? There would
be a noise like a pistol shot. Do you tell me that all this
happened within a few yards of your bed and that you heard
nothing of it?"

"I do not know what to think. It is all dark to me."