other, pausing only at the large one which looked from the hall onto the stable lane. This he opened and made a very careful examination of the sill with his powerful magnifying lens.
“Now we shall go upstairs,” said he at last.
The banker’s dressing-room was a plainly furnished little chamber, with a grey carpet, a large bureau, and a long mirror. Holmes went to the bureau first and looked hard at the lock.
“Which key was used to open it?” he asked.
“That which my son himself indicated—that of the cupboard of the lumber-room.”
“Have you it here?”
“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