privileged character, and his remark was received with good-natured laughter. Under cover of the noise, Baker whispered to Lloyd: "Stanton has discovered his cipher code book has been tampered with. Meet me at my office at five o'clock."

"All right, Colonel," and Baker departed.

By the time they had reached dessert, the grill room was deserted. Goddard lighted a cigar, and, lounging back in his chair, contemplated his host with keen interest.

"I can't understand it, Lloyd," he said finally.

"Understand what?" replied Lloyd, roused from his abstraction.

"Why you became a professional detective. With your social position, talents..."

"That's just it!"

"What?"

"My talents. If it had not been for them, I would have gone to West Point with you, Bob. But, above all else in the world I enjoy pitting my wits against another's—enjoy unravelling mysteries that baffle others. To me there is no excitement equal to a man hunt. I suppose in a way it is an inheritance; my father was a great criminal lawyer, and his father before him. When Pinkerton organized the Secret Service division of the army in '61, I went with him, thinking I could follow my chosen profession and serve my country at the same time. Besides," with a trace of bitterness in his voice, "I owe society nothing; nor do I desire to associate with society people."

Goddard gazed sorrowfully at his friend. "Hasn't the old wound healed, Lloyd?" he asked softly.

"No; nor ever will," was the brief response, and Lloyd's face grew stern with the pain of other years. "As I told you, Bob, I was detailed here to solve a very serious problem for our government," he resumed, after a slight pause. "Baker has rounded up and arrested all persons suspected of corresponding with the rebels, and sent some to Old Capitol Prison, and others through the lines to Richmond, where they can do us no harm. Most of these spies gave themselves away by their secesh talk, or by boasting of their ability to run the blockade.

"But information of our armies' intended movements is still being carried out of Washington right under Baker's nose. It is imperative that this leak be stopped at once, or the Union forces may suffer another Bull Run. Baker and the provost marshal of the district have tried every means in their power to learn the methods and the identity of this spy, but so far without success."

"But have you found no trace in your search?" inquired Goddard eagerly.

"Until to-day I had only a theory; now I have a clue, a faint one, but——" Lloyd paused and glanced about the room to see that he was not overheard. They had the place to themselves, save for their waiter, Sam, who was busy resetting a table in the opposite corner. "I have told you, Bob, how I came to get this wound"—Lloyd touched his temple—"when on my way to Poolesville." Goddard nodded assent. "But I did not tell you that before the supposed trooper made good his escape his hat was knocked off and Symonds saw that the spy was a woman."

"A woman!" Goddard nearly dropped his cigar in his astonishment. "How did he find that out?"

"Her hair fell down her back when her hat was knocked off."

Goddard stared at his companion. "Well, I'll be—blessed!" he muttered.

"I have been looking for such a woman for some time, and until to-day without success," declared Lloyd calmly.

"Did she by chance leave any trace, any clues, behind her in her flight?"

"One." Lloyd pulled out his leather wallet. "On examining the hat, which he picked up on his return to where I was lying unconscious, Symonds found these hairs adhering to the lining. He put them in an envelope and brought them to me at the hospital." Lloyd drew out a small paper, which he opened with care. "Have you ever seen hair of that color before?"

Goddard took the opened paper, and glanced at its contents. A few red-gold hairs confronted him. Instantly his thoughts flew to the scene of that morning. In his mind's eye he saw the laughing face, the lovely curly Titian hair, and heard the mocking, alluring voice say: "I'm company." He slowly raised his head in time to see the steady gaze of their negro waiter fixed full upon the paper in his hand.

CHAPTER III

A KNOT OF RIBBON BLUE

"I am so glad to see you, Major Goddard," said his hostess, stepping into the hall to greet the young officer, as the black butler admitted him. "It is a shame you could not get here in time to take supper with us."

"You are not half as disappointed as I, Mrs. Warren," replied Goddard, shaking hands warmly. "I was unavoidably detained at the War Department. Do please accept my sincere apologies for my unintentional rudeness."

"Why, of course; I was sure you could not help the delay. But I must not keep you standing in the hall." And she reëntered the parlor, closely followed by Goddard, who glanced about the room with well-bred curiosity.

It was the first time he had been entertained while in Washington. Senator Warren, to whom he had brought letters from mutual friends in the North, had insisted upon his waiving the formality of a first call. The invitation to supper had been seconded by a cordial note from Mrs. Warren, whom he had met two nights before at the Capitol, and he had accepted the invitation, not counting on the exigencies of the War Department.

The large rooms were comfortably filled with men and women, who sat or stood talking together in little groups. In the further corner a girl was seated at the grand piano; as she raised her head, Goddard recognized Nancy Newton. Mrs. Warren was on the point of introducing him to several of her guests when Nancy struck a few opening chords. Instantly the low hum of conversation ceased, and her clear mezzo-soprano voice filled the room:

Drawn by the charm of her voice, Goddard edged nearer and nearer the piano until he leaned against its side facing the singer. He scanned intently the downcast face, the soft, rippling hair, the broad brow, and sensitive red lips. Attracted by the steadiness of his gaze, she raised her eyes to his. For one brief second soul gazed into soul; then the hazel eyes fell before the gray ones, and a rich wave of color mantled Nancy's cheeks as her voice rose in birdlike notes:

Silence followed the last note as it died away, for the song struck home. Northern and Southern sympathizers alike swallowed a suspicious lump as they thought of their loved ones far away on a field of strife, and the applause was late in coming.

"Upon my soul, Nancy, that is a doleful song." Doctor Boyd strode over to the piano. "Give us something cheerful. Play 'Dixie.'"

"Indeed, you will do nothing of the sort," declared Mrs. Warren, as Nancy's fingers strayed over the keys. "Do you suppose I want the provost marshal's men camping on my doorstep? Play 'Yankee Doodle' if you wish; but first, Nancy, I want you to meet Major Goddard—Miss Newton. Doctor Boyd, this is our friend Major Goddard, who is here on leave."

Nancy simply bowed in acknowledgment of the introduction, but Doctor Boyd held out his hand in hearty greeting.

"Glad to meet you, Major." Seeing Goddard's face more clearly as a guest moved from before one of the lamps, he added: "Why, you are the officer who wished to arrest us this morning, eh, Nancy?"

"Oh, no, sir," protested Goddard hastily. "Captain Lloyd and I