Yet, as his eyes flitted over the room, he felt a vague and haunting sense of oppression. It must be the air, he thought, which was heavy and stale, as if the window had not been opened for several days. The note handed him by the queer messenger was still a disturbing factor in his thoughts, and he took it from his pocket and examined it in the light of his flash.
At first he saw nothing but the crude pencil tracings in which he recognized the emblem of the Duke, but presently, as he gave closer attention to the outlines of the design, he detected tiny waves and jags that impressed him as being there for a purpose. He placed his magnifying lens between the electric flash and the paper, and now the uneven strokes dissolved into uncouth but fairly legible letters. He chuckled as he perceived that the Duke, always a lover of the theatrical, was in the habit of communicating with his agents by means of writing that had to be read through a magnifying lens.
Quickly he deciphered the script hidden in the ornate tracings. His face grew hard as a welter of ideas and suspicions surged through his mind. The message read:
Traitors sometimes die. Report at once.
The six words seemed to throb with a sinister meaning. They started a long train of thoughts in the Phantom’s mind. For one thing, they proved that the message was intended for Granger, since there was no reason why the Duke should accuse the Gray Phantom of treachery. They also made it clear that the reporter was a member of the Duke’s new organization and that by some faithless act he had incurred the displeasure of the leaders of the band.
The Phantom loathed a traitor, but the Duke himself was no stickler for fair methods, and that a member of his gang should have been caught in a perfidious act was not particularly surprising. As the Phantom saw it, the chief importance of his discovery lay in the fact that he was still laboring under a serious handicap. He had thought that in assuming the guise of a newspaper reporter he would insure himself against molestation from all sides, but now it appeared that the man whose identity he had borrowed was an object of suspicion and possible vengeance. The threat in the first sentence of the message was clear and to the point.
He scowled darkly at the message, then folded it carefully and put it in his pocket. He still had an advantage, he told himself, for he was safe so far as the police were concerned. What he had to guard against was the stealthy machinations and intrigues of the Duke’s band. On the whole, it was fortunate that the note had fallen into his possession, for forewarned was forearmed. Increased alertness and a few extra precautions would see him clear of the pitfalls.
Extinguishing his flash, he left the room and descended the stairs at the end of the hall, emerging behind the counter in the front of the store. He walked down the narrow aisle between the show case and the shelves that lined the wall. The door to Gage’s bedroom was unlocked, and he entered. A shaft of gray light slanting in beneath the window shade gave blurry outlines to the objects in the room. He passed to the window and pulled the curtain aside. It was a dull, bleak dawn, as dismal and gray as the one that had greeted him twenty-four hours ago when he crawled out of the tunnel.
His inspection of the room shed not the faintest ray of light on the questions in his mind. He searched carefully, sweeping the dark corners with his flash, but nothing appeared to have been touched since his last visit. Of the tragedy he had witnessed, not the slightest sign was to be found. Yet the scene was so vividly impressed on his mind that he felt as though the very walls were alive with the echoes of the dying woman’s groans. He could still see the quickly moving hand that had held the knife.
“Whose hand?” he asked. It had been a mere flash, and, as far as he could recall, there had been nothing distinctive about it. It was not likely he would recognize the hand if he should see it a second time; yet the question was already settled in his mind. The housekeeper herself had given him the answer to it in the few words she had gasped out just before the blow was struck: