"That is so," I answered.

"Would you care to help me—as a matter of business, of course—to work up this case? I have a lot of other work on hand and your assistance would be of great value to me."

I said, with great truth, that I should be delighted.

"Then," said Thorndyke, "come round to breakfast to-morrow and we will settle the terms, and you can commence your duties at once. And now let us light our pipes and finish our yarns as though agitated clients and thick-headed solicitors had no existence."

[!-- CH3 --]

CHAPTER III

A LADY IN THE CASE

When I arrived at Thorndyke's chambers on the following morning, I found my friend already hard at work. Breakfast was laid at one end of the table, while at the other stood a microscope of the pattern used for examining plate-cultures of micro-organisms, on the wide stage of which was one of the cards bearing six thumb-prints in blood. A condenser threw a bright spot of light on the card, which Thorndyke had been examining when I knocked, as I gathered from the position of the chair, which he now pushed back against the wall.

"I see you have commenced work on our problem," I remarked as, in response to a double ring of the electric bell, Polton entered with the materials for our repast.

"Yes," answered Thorndyke. "I have opened the campaign, supported, as usual, by my trusty chief-of-staff; eh! Polton?"