"You have a grand gift of silence, Watson," said he. "It makes you quite invaluable as a companion. 'Pon my word, it is a great thing for me to have someone to talk to, for my own thoughts are not over-pleasant. I was wondering what I should say to this dear little woman to-night when she meets me at the door."

"You forget that I know nothing about it."

"I shall just have time to tell you the facts of the case before we get to Lee. It seems absurdly simple, and yet, somehow I can get nothing to go upon. There's plenty of thread, no doubt, but I can't get the end of it into my hand. Now, I'll state the case clearly and concisely to you, Watson, and maybe you can see a spark where all is dark to me."

"Proceed, then."

"Some years ago–to be definite, in May, 1884–there came to Lee a gentleman, Neville St. Clair by name, who appeared to have plenty of money. He took a large villa, laid out the grounds very nicely, and lived generally in good style. By degrees he made friends in the neighbourhood, and in 1887 he married the daughter of a local brewer, by whom he now has two children. He had no occupation, but was interested in several companies and went into town as a rule in the morning, returning by the 5:14 from Cannon Street every night. Mr. St. Clair is now thirty-seven years of age, is a man of temperate habits, a good husband, a very affectionate father, and a man who is popular with all who know him. I may add that his whole debts at the present moment, as far as we have been able to ascertain, amount to 88 pounds 10s., while he has 220 pounds standing to his credit in the Capital and Counties Bank. There is no reason, therefore, to think that money troubles have been weighing upon his mind.

"Last Monday Mr. Neville St. Clair went into town rather earlier than usual, remarking before he started that he had two important commissions to perform, and that he would bring his little boy home a box of bricks. Now, by the merest chance, his wife received a telegram upon this same Monday, very shortly after his departure, to the effect that a small parcel of considerable value which she had been expecting was waiting for her at the offices of the Aberdeen Shipping Company. Now, if you are well up in your London, you will know that the office of the company is in Fresno Street, which branches out of Upper Swandam Lane, where you found me to-night. Mrs. St. Clair had her lunch, started for the City, did some shopping, proceeded to the company's office, got her packet, and found herself at exactly 4:35 walking through Swandam Lane on her way back to the station. Have you followed me so far?"

"It is very clear."