“Sit down,” said the Secretary soothingly, “and tell me why you wished to see me so urgently.”

“Oh, dear, I’m so confused!” Mrs. Truxton drew a long breath, then plunged into her story. “I stopped at our house, Eleanor, as I had forgotten to bring my writing materials here. I found my letter book in my room where I had left it, and, on opening it, discovered this letter addressed to you, Mr. Secretary”—drawing out an envelope from her handbag. “I can’t conceive where it came from,” added the poor woman, “except that I left my letter book in Eleanor’s drawing-room on Monday night on my way to bed. I was up early Tuesday morning before any of the servants were down, and, on entering the drawing-room, found my letter book still lying on the table, with several of its leaves turned over. I gathered up all the papers without looking at them carefully, and took them up to my desk and laid them away in a drawer. This is the first time I have opened the letter book, for in your absence, Eleanor, I have used your writing room.” Mrs. Truxton paused to take breath. “It’s marked ‘important,’ and that’s why I hurried after you; besides, handwriting is like a photograph to me, and I never forget one I have seen—that letter is from Senator Carew.”

“Good God! the missing letter!” shouted Brett.

The Secretary took the letter from Mrs. Truxton and tore it open, and, in a voice of suppressed excitement, read its contents aloud.

“My Dear Mr. Secretary:

“I am writing to you in case I do not see you before you attend the Cabinet meeting to-morrow morning. Your servant tells me that you are expected home on a late train to-night, but I may be detained in reaching your house, or the train may be later than scheduled, and therefore I might miss you. The President will reach Washington to-morrow on the Mayflower from his trip down the Chesapeake, and it is impossible for me to reach him to-night.

“I have discovered that Colombia is inciting Panama to revolt. We are not too well liked down there as it is. I have also discovered that Japan will take a hand in the game. The Island of Gorgona, in the Pacific, which belongs to a wealthy Colombian, has a magnificent harbor—the Harbor of Trinidad—and it has been offered to the latter nation as a coaling station. Japan does not have to appeal to European nations to finance a war; the South Americans will provide funds. They are jealous of our growing prestige, our increasing commerce, and fear our colonization. We reached out and grasped Panama, and they think we are casting covetous glances at Mexico and other countries to the South. Japan has also been guaranteed the Philippines.

“I induced Douglas Hunter, attaché of the American Embassy at Tokio, to make certain investigations. I expect to see him to-morrow, and, if he has discovered anything of material value, I will bring him with me to the State Department at once.

“In making these researches I find perfidy and dishonor exists in an astounding quarter. Government secrets are being betrayed by a paid spy and traitor—Dana Thornton——”

A chair was dashed aside, and, before anyone could move, Colonel Thornton had thrown open the hall door and disappeared. So totally unexpected was the dénouement that the others sat too stunned to move, and that moment’s respite gave Thornton his chance. The roar of a motor broke the spell, and the men, galvanized into sudden action, raced to the front door, only in time to see Eleanor’s powerful car, far down the street, with Colonel Thornton at the wheel. He turned the machine into Wisconsin Avenue and disappeared.