whether the poor old fellow killed himself! If the latter, may
it be taken as some sign of self-reproach for duty neglected? We
must leave that question to the future. Now we shall turn to the
Cadogan Wests."

A small but well-kept house in the outskirts of the town
sheltered the bereaved mother. The old lady was too dazed with
grief to be of any use to us, but at her side was a white-faced
young lady, who introduced herself as Miss Violet Westbury, the
fiancee of the dead man, and the last to see him upon that fatal
night.

"I cannot explain it, Mr. Holmes," she said. "I have not shut an
eye since the tragedy, thinking, thinking, thinking, night and
day, what the true meaning of it can be. Arthur was the most
single-minded, chivalrous, patriotic man upon earth. He would
have cut his right hand off before he would sell a State secret
confided to his keeping. It is absurd, impossible, preposterous
to anyone who knew him."

"But the facts, Miss Westbury?"

"Yes, yes; I admit I cannot explain them."

"Was he in any want of money?"

"No; his needs were very simple and his salary ample. He had
saved a few hundreds, and we were to marry at the New Year."

"No signs of any mental excitement? Come, Miss Westbury, be