Harren turned white.
"Not that I doubt that _you_ can see it," pursued the Tracer calmly. "I simply repeat that I see absolutely nothing on this paper except a part of a curtain, a window pane, and--and--"
"What! for G.o.d"s sake!" cried Harren hoa.r.s.ely.
"I don"t know yet. Wait; let me study it."
"Can you not see her face, her eyes? _Don"t_ you see that exquisite slim figure standing there by the curtain?" demanded Harren, laying his shaking finger on the photograph. "Why, man, it is as clear, as clean cut, as distinct as though the picture had been taken in sunlight! Do you mean to say that there is nothing there--that I am crazy?"
"No. Wait."
"Wait! How can I wait when you sit staring at her picture and telling me that you can"t see it, but that it is doubtless there? Are you deceiving me, Mr. Keen? Are you trying to humor me, trying to be kind to me, knowing all the while that I"m crazy--"
"Wait, man! You are no more crazy than I am. I tell you that I can see something on the window pane--"
He suddenly sprang up and walked to the window, leaning close and examining the gla.s.s. Harren followed and laid his hand lightly over the pane.
"Do you see any marks on the gla.s.s?" demanded Keen.
Harren shook his head.
"Have you a magnifying gla.s.s?" asked the Tracer.
Harren pointed back to the table, and they returned to the photograph, the Tracer bending over it and examining it through the gla.s.s.
"All I see," he said, still studying the photograph, "is a corner of a curtain and a window on which certain figures seem to have been cut.
. . . Look, Captain Harren, can you see them?"
"I see some marks--some squares."
"You can"t see anything written on that pane--as though cut by a diamond?"
"Nothing distinct."
"But you see _her_?"
"Perfectly."
"In minute detail?"
"Yes."
The Tracer thought a moment: "Does she wear a ring?"
"Yes; can"t you see?"
"Draw it for me."
They seated themselves side by side, and Harren drew a rough sketch of the ring which he insisted was so plainly visible on her hand:
[Ill.u.s.tration: Ring with an X]
"Oh," observed the Tracer, "she wears the Seal of Solomon on her ring."
Harren looked up at him. "That symbol has haunted me persistently for three years," he said. "I have found it everywhere--on articles that I buy, on house furniture, on the belts of dead ladrones, on the hilts of creeses, on the funnels of steamers, on the headstalls of horses. If they put a laundry mark on my linen it"s certain to be this! If I buy a box of matches the sign is on it. Why, I"ve even seen it on the brilliant wings of tropical insects. It"s got on my nerves. I dream about it."
[Ill.u.s.tration: Cryptographic symbol]
"And you buy books about it and try to work out its mystical meaning?"
suggested the Tracer, smiling.
But Harren"s gray eyes were serious. He said: "_She_ never comes to me without that symbol somewhere about her. . . . I told you she never spoke to me. That is true; yet once, in a vivid dream of her, she did speak. I--I was almost ashamed to tell you of that."
"Tell me."
"A--a dream? Do you wish to know what I dreamed?"
"Yes--if it was a dream."
"It was. I was asleep on the deck of the _Mindinao_, dead tired after a fruitless hike. I dreamed she came toward me through a young woodland all lighted by the sun, and in her hands she held ma.s.ses of that wild flower we call Solomon"s Seal. And she said--in the voice I know must be like hers: "If you could only read! If you would only understand the message I send you! It is everywhere on earth for you to read, if you only would!"
"I said: "Is the message in the seal? Is that the key to it?"
"She nodded, laughing, burying her face in the flowers, and said:
""Perhaps I can write it more plainly for you some day; I will try very, very hard."
"And after that she went away--not swiftly--for I saw her at moments far away in the woods; but I must have confused her with the glimmering shafts of sunlight, and in a little while the woodland grew dark and I woke with the racket of a Colt"s automatic in my ears."
He pa.s.sed his sun-bronzed hand over his face, hesitated, then leaned over the photograph once more, which the Tracer was studying intently through the magnifying gla.s.s.
"There is something on that window in the photograph which I"m going to copy," he said. "Please shove a pad and pencil toward me."
Still examining the photograph through the gla.s.s which he held in his right hand, Mr. Keen picked up the pencil and, feeling for the pad, began very slowly to form the following series of symbols:
[Ill.u.s.tration: Cryptographic symbols]
"What on earth are you doing?" muttered Captain Harren, twisting his short mustache in perplexity.
"I am copying what I see through this magnifying gla.s.s written on the window pane in the photograph," said the Tracer calmly. "Can"t you see those marks?"
"I--I do now; I never noticed them before particularly--only that there were scratches there."
When at length the Tracer had finished his work he sat, chin on hand, examining it in silence. Presently he turned toward Harren, smiling.
"Well?" inquired the younger man impatiently; "do those scratches representing Solomon"s Seal mean anything?"
"It"s the strangest cipher I ever encountered," said Mr. Keen--"the strangest I ever heard of. I have seen hundreds of ciphers--hundreds--secret codes of the State Department, secret military codes, elaborate Oriental ciphers, symbols used in commercial transactions, symbols used by criminals and every species of malefactor.
And every one of them can be solved with time and patience and a little knowledge of the subject. But this"--he sat looking at it with eyes half closed--"this is _too_ simple."