"Thus the first words are "Many thanks." The first break is at the end of the letter "n," between it and the "y." There are three letters before this break. That stands for the number 3.
"When you come to the end of a word, if the stroke is down at the end of the last letter, that means no break; if it is up, it means a break.
The stroke at the end of the "y" is plainly down. Therefore there is no break until after the "t." That gives us the number 2. So we get 1 next, and again 1, and still again 1; then 5; then 5; then 1; and so on.
"Now, take these numbers in pairs, thus 3-2; 1-1; 1-5; 5-1. By consulting this table you can arrive at the hidden message."
He held up a cardboard bearing the following arrangement of the letters of the alphabet:
1 2 3 4 5 1 A B C D E 2 F G H IJ K 3 L M N O P 4 Q R S T U 5 V W X Y Z
"Thus," he continued, "3-2 means the third column and second line. That is "H." Then 1-1 is "A "; 1-5 is "V "; 5-1 is "E"--and we get the word "Have.""
Not a soul stirred as Kennedy unfolded the cipher. What was the terrible secret in that scientific essay I had puzzled so unsuccessfully over, the night before?
"Even this can be complicated by choosing a series of fixed numbers to be added to the real numbers over and over again. Or the order of the alphabet can be changed. However, we have the straight cipher only to deal with here."
"And what for Heaven"s sake does it reveal?" asked Saratovsky, leaning forward, forgetful of the fever that was consuming him.
Kennedy pulled out a piece of paper on which he had written the hidden message and read:
"Have successfully inoculated S. with fever. Public opinion America would condemn violence. Think best death should appear natural.
Samarova infected also. Cook unfortunately took dose in food intended Kharkoff. Now have three cases. Shall stop there at present. Dangerous excite further suspicion health authorities."
Rapidly I eliminated in my mind the persons mentioned, as Craig read.
Saratovsky of course was not guilty, for the plot had centred about him. Nor was little Samarova, nor Dr. Kharkoff. I noted Revalenko and Kazanovitch glaring at each other and hastily tried to decide which I more strongly suspected.
"Will get K.," continued Kennedy. "Think bomb perhaps all right. K.
case different from S. No public sentiment."
"So Kharkoff had been marked for slaughter," I thought. Or was "K."
Kazanovitch? I regarded Revalenko more closely. He was suspiciously sullen.
"Must have more money. Cable ten thousand rubles at once Russian consul-general. Will advise you plot against Czar as details perfected here. Expect break up New York band with death of S."
If Kennedy himself had thrown a bomb or scattered broadcast the contents of the test-tubes, the effect could not have been more startling than his last quiet sentence--and sentence it was in two senses.
"Signed," he said, folding the paper up deliberately, "Ekaterina Nevsky."
It was as if a cable had snapped and a weight had fallen. Revalenko sprang up and grasped Kazanovitch by the hand. "Forgive me, comrade, for ever suspecting you," he cried.
"And forgive me for suspecting you," replied Kazanovitch, "but how did you come to shadow Kharkoff?"
"I ordered him to follow Kharkoff secretly and protect him," explained Saratovsky.
Olga and Ekaterina faced each other fiercely. Olga was trembling with emotion. Nevsky stood coldly, defiantly. If ever there was a consummate actress it was she, who had put the bomb at her own door and had rushed off to start Kennedy on a blind trail.
"You traitress," cried Olga pa.s.sionately, forgetting all in her outraged love. "You won his affections from me by your false beauty--yet all the time you would have killed him like a dog for the Czar"s gold. At last you are unmasked--you Azeff in skirts. False friend--you would have killed us all--Saratovsky, Kharkoff--"
"Be still, little fool," exclaimed Nevsky contemptuously. "The spirilla fever has affected your brains. Bah! I will not stay with those who are so ready to suspect an old comrade on the mere word of a charlatan.
Boris Kazanovitch, do you stand there SILENT and let this insult be heaped upon me?"
For answer, Kazanovitch deliberately turned his back on his lover of a moment ago and crossed the room. "Olga," he pleaded, "I have been a fool. Some day I may be worthy of your love. Fever or not, I must beg your forgiveness."
With a cry of delight the actress flung her arms about Boris, as he imprinted a penitent kiss on her warm lips.
"Simpleton," hissed Nevsky with curling lips. "Now you, too, will die."
"One moment, Ekaterina Nevsky," interposed Kennedy, as he picked up some vacuum tubes full of a golden-yellow powder, that lay on the table. "The spirilla, as scientists now know, belong to the same family as those which cause what we call, euphemistically, the "black plague."
It is the same species as that of the African sleeping sickness and the Philippine yaws. Last year a famous doctor whose photograph I see in the next room, Dr. Ehrlich of Frankfort, discovered a cure for all these diseases. It will rid the blood of your victims of the Asiatic relapsing fever germs in forty-eight hours. In these tubes I have the now famous salvarsan."
With a piercing shriek of rage at seeing her deadly work so quickly and completely undone, Nevsky flung herself into the little laboratory behind her and bolted the door.
Her face still wore the same cold, contemptuous smile, as Kennedy gently withdrew a sharp scalpel from her breast.
"Perhaps it is best this way, after all," he said simply.
IV
THE FIREBUG
A big, powerful, red touring-car, with a shining bra.s.s bell on the front of it, was standing at the curb before our apartment late one afternoon as I entered. It was such a machine as one frequently sees threading its reckless course in and out among the trucks and street-cars, breaking all rules and regulations, stopping at nothing, the bell clanging with excitement, policemen holding back traffic instead of trying to arrest the driver--in other words, a Fire Department automobile.
I regarded it curiously for a moment, for everything connected with modern fire-fighting is interesting. Then I forgot about it as I was whisked up in the elevator, only to have it recalled sharply by the sight of a strongly built, grizzled man in a blue uniform with red lining. He was leaning forward, earnestly pouring forth a story into Kennedy"s ear.
"And back of the whole thing, sir," I heard him say as he brought his large fist down on the table, "is a firebug--mark my words."
Before I could close the door, Craig caught my eye, and I read in his look that he had a new case--one that interested him greatly. "Walter,"
he cried, "this is Fire Marshal McCormick. It"s all right, McCormick.
Mr. Jameson is an accessory both before and after the fact in my detective cases."
A firebug!--one of the most dangerous of criminals. The word excited my imagination at once, for the newspapers had lately been making much of the strange and appalling succession of apparently incendiary fires that had terrorised the business section of the city.
"Just what makes you think that there is a firebug--one firebug, I mean--back of this curious epidemic of fires?" asked Kennedy, leaning back in his morrischair with his finger-tips together and his eyes half closed as if expecting a revelation from some subconscious train of thought while the fire marshal presented his case.
"Well, usually there is no rhyme or reason about the firebug," replied McCormick, measuring his words, "but this time I think there is some method in his madness. You know the Stacey department-stores and their allied dry-goods and garment-trade interests?"
Craig nodded. Of course we knew of the gigantic dry-goods combination.
It had been the talk of the press at the time of its formation, a few months ago, especially as it included among its organisers one very clever business woman, Miss Rebecca Wend. There had been considerable opposition to the combination in the trade, but Stacey had shattered it by the sheer force of his personality.
McCormick leaned forward and, shaking his forefinger to emphasise his point, replied slowly, "Practically every one of these fires has been directed against a Stacey subsidiary or a corporation controlled by them."
"But if it has gone as far as that," put in Kennedy, "surely the regular police ought to be of more a.s.sistance to you than I."
"I have called in the police," answered McCormick wearily, "but they haven"t even made up their minds whether it is a single firebug or a gang. And in the meantime, my G.o.d, Kennedy, the firebug may start a fire that will get beyond control!"