"But to return to the question of the spy," said Mr. Sefton, tenaciously, "have you really no opinion, Captain Prescott? I have heard that you assisted Mr. Talbot when he was detailed to search Miss Grayson's house—a most commendable piece of zeal on your part—and I thought it showed your great interest in the matter."

"Captain Prescott," said Mrs. Markham, "I am surprised at you. You really helped in the searching of Miss Grayson's house! The idea of a soldier doing such work when he doesn't have to!"

Prescott laughed lightly—a cloak for his real feelings—as Mrs. Markham's frank criticism stung him a little.

"It was pure chance, Mrs. Markham. I happened to be near there when Talbot passed with his detail, and as he and I are the best of friends, I went with him wholly out of curiosity, I assure you—not the best of motives, I am willing to admit."

"Then I am to imply, Mrs. Markham," said the Secretary in his smooth voice, "that you condemn me for instituting such a search. But the ladies, if you will pardon me for saying it, are the most zealous upholders of the war, and now I ask you how are we men to carry it on if we do not take warlike measures."

She shrugged her shoulders and the Secretary turned his attention again to Prescott.

"What do you think of our chances of capture, Captain?" he said. "Shall we take this woman?"

"I don't think so," replied Prescott, meeting the Secretary's eye squarely. "First, you have no clue beyond the appearance of a woman wearing a certain style of costume in the Government building on a certain day. You have made no progress whatever beyond that. Now, whoever this woman may be, she must be very clever, and I should think, too, that she has friends in the city who are helping her."

"Then," said the Secretary, "we must discover her friends and reach her through them."

"How do you propose going about it?" asked Prescott calmly.