As Kennedy hung up the receiver, he made his way back again to the bedroom, scratching his ear. He noticed that I was doing the same in my delirium.

"Has Walter been scratching his ear?" he asked of Johnson.

Johnson nodded. "That's strange," considered Craig thoughtfully. "I've been doing the same."

He turned back into the living-room and for a moment looked about.

Finally his eye happened to fall on the telephone and an idea seemed to occur to him.

He went over to the instrument and unscrewed the receiver. Carefully he looked inside. Then he looked closer. There was something peculiar about it and he picked up a blank sheet of white paper, dusting off the diaphragm on it. There, on the paper, were innumerable little black specks.

Just then, outside, Dr. G.o.dowski's car drew up and he jumped out, swinging his black bag. Not being acquainted with what we were going through, G.o.dowski did not notice the almond-eyed Chinaman who was watching down the street.

"How do you do, doctor," greeted Craig faintly, at the door.

"What seems to be the difficulty?" inquired the doctor eagerly.

"I don't know," returned Craig, "but I have my suspicions. I'm too ill to verify them myself. So I've called on you. Look at Jameson first,"

he added.

While G.o.dowski was examining me, Craig managed to get out his microscope and was looking through it at the strange black specks on the paper. There, under the lens, he could see the most remarkable, almost microscopic creature, all legs and feelers, a most vicious object.

Weak though he was, he could not help an exclamation of exultation at his discovery, just as G.o.dowski had finished with me.

"Look!" he cried, calling the doctor. "I know what the trouble is, G.o.dowski."

He had started to tell, but the excitement of the journey and the exertion were so great that he could hardly mumble.

"Here--look--on this paper," he cried. "From the telephone--"

He had risen and was handing the paper to the scientist when his weakness overcame him. He fell flat on his face on the floor and dropped the paper, spilling the contents.

G.o.dowski, now thoroughly alarmed, bent over Craig. But the delirium had overcome Kennedy, too.

Unable to make any sense out of Craig's broken wanderings, G.o.dowski lost no time in taking samples of our blood.

Then he hurried away to his laboratory in his car. As he did so, however, Long Sin leaped into a taxicab which was waiting and followed.

In G.o.dowski's laboratory, where he was studying tropical diseases, the bacteriologist set to work at once to confirm his own growing suspicions.

From a monkey which he had there for experimental purposes, he drew off some blood samples. Then, with the aid of his a.s.sistant, he took the blood samples he had obtained from us. The monkey's blood, under the microscope, seemed full of rather elongated wriggling germs of a peculiar species. In and out they made their way among the blood corpuscles each like a dart aimed at life itself.

Then he took the samples of our blood. In them were the same germs--carried by that gruesome tick!

"The spirillum!" he muttered. "They are infected with African recurrent fever. The only remedy is atoxyl, administered intravenously, after the manner of Professor Ehrlich's famous '606'."

G.o.dowski had rung the call box hastily for a messenger, when Long Sin, who had managed stealthily to creep up to the doctor's laboratory window, scowled, through at the action--then moved away.

While his a.s.sistant gathered the apparatus, the doctor wrote:

MISS ANNE SEPTIX, 301 W. --th St.

Please go at once to the apartment of Craig Kennedy,--Claremont Ave.

Surgical case.

G.o.dOWSKI, M. D.

The boy arrived finally and the doctor gave him a generous tip to hurry with the note.

He had not turned the corner, however, when Long Sin appeared. Subtly he played on the boy's cupidity to get him to deliver a note of his own, even offered to deliver the boy's note for him. The flash of a five dollar bill made the rest easy.

As the boy disappeared on a fake errand, Long Sin, with the real note hurried down-town, smiling wickedly.

"They have discovered the fever, Master," he reported in the den.

Wu was beside himself with rage. Before he could speak, however, Long Sin spread out G.o.dowski's message. "But I have this," he added.

It took merely a glance to suggest to Wu a new plan of action. He rose and moved quickly into the back room. "Come," he ordered Weepy Mary.

"You must dress up as a nurse--immediately."

Quickly she donned one of the numerous disguises while Wu planned his campaign.

"Here," he directed when she was ready, handing her a little vial. "You must infect every instrument the doctor uses on Kennedy and Jameson,--see?"

She nodded and a moment later was on her way uptown.

Meanwhile G.o.dowski himself had arrived at our apartment, much to the relief of our friend Johnson, and was unpacking his instruments.

Quickly he improvised two operating tables, and placed one of us on each. Then, with his a.s.sistant, he put on his white robes, mask, gloves and other precautions for asepsis, setting out the apparatus for the intravenous administration of the drug that would kill the spirillum.

G.o.dowski was busy with the atoxyl, mixing it in a normal salt solution.

He would drop in a few drops of an acid, then a few drops of an alkaline solution, so as to keep the mixture neutral. Finally, he poured the solution into a container, to the bottom of which was attached a long tube. This container he raised high over our heads, clamping the tube.

Then he fastened a tiny needle to the end of the tube, so that it could be inserted in our arms, catching skillfully a vein--a very difficult piece of work in which he excelled. The liquid would then flow by the force of gravity from the container down through the tube, through the hollow needle and into the vein where it would act on the germs of the fever.

They had finished their preparations and were waiting for Miss Septix.

"She ought to be here, now," muttered G.o.dowski impatiently, looking at his watch.

Just then a cab drove up outside.

"Perhaps that is she," he exclaimed. "It must be."

A few moments later the door of the apartment opened. His face showed his disappointment. It was a stranger.

"Miss Septix is ill," she introduced, "and sent me to take her place."