“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.”