my wife."

"In short, that she had become suddenly deranged?"

"Well, really, when I consider that she has turned her back--I
will not say upon me, but upon so much that many have aspired to
without success--I can hardly explain it in any other fashion."

"Well, certainly that is also a conceivable hypothesis," said
Holmes, smiling. "And now, Lord St. Simon, I think that I have
nearly all my data. May I ask whether you were seated at the
breakfast-table so that you could see out of the window?"

"We could see the other side of the road and the Park."

"Quite so. Then I do not think that I need to detain you longer.
I shall communicate with you."

"Should you be fortunate enough to solve this problem," said our
client, rising.

"I have solved it."

"Eh? What was that?"

"I say that I have solved it."

"Where, then, is my wife?"

"That is a detail which I shall speedily supply."

Lord St. Simon shook his head. "I am afraid that it will take
wiser heads than yours or mine," he remarked, and bowing in a
stately, old-fashioned manner he departed.

"It is very good of Lord St. Simon to honour my head by putting
it on a level with his own," said Sherlock Holmes, laughing. "I
think that I shall have a whisky and soda and a cigar after all
this cross-questioning. I had formed my conclusions as to the
case before our client came into the room."

"My dear Holmes!"

"I have notes of several similar cases, though none, as I
remarked before, which were quite as prompt. My whole examination
served to turn my conjecture into a certainty. Circumstantial
evidence is occasionally very convincing, as when you find a
trout in the milk, to quote Thoreau's example."

"But I have heard all that you have heard."

"Without, however, the knowledge of pre-existing cases which
serves me so well. There was a parallel instance in Aberdeen some
years back, and something on very much the same lines at Munich
the year after the Franco-Prussian War. It is one of these
cases--but, hullo, here is Lestrade! Good-afternoon, Lestrade!
You will find an extra tumbler upon the sideboard, and there are
cigars in the box."

The official detective was attired in a pea-jacket and cravat,
which gave him a decidedly nautical appearance, and he carried a
black canvas bag in his hand. With a short greeting he seated
himself and lit the cigar which had been offered to him.

"What's up, then?" asked Holmes with a twinkle in his eye. "You
look dissatisfied."

"And I feel dissatisfied. It is this infernal St. Simon marriage
case. I can make neither head nor tail of the business."

"Really! You surprise me."

"Who ever heard of such a mixed affair? Every clue seems to slip
through my fingers. I have been at work upon it all day."

"And very wet it seems to have made you," said Holmes laying his
hand upon the arm of the pea-jacket.

"Yes, I have been dragging the Serpentine."

"In heaven's name, what for?"

"In search of the body of Lady St. Simon."

Sherlock Holmes leaned back in his chair and laughed heartily.

"Have you dragged the basin of Trafalgar Square fountain?" he
asked.

"Why? What do you mean?"

"Because you have just as good a chance of