“The large one,” he ordered, “with one hundred and ninety-two tubes. And hurry.”

Before the student appeared, came an ambulance which some one in the excitement had summoned. Kennedy quickly commandeered both the young doctor and what surgical material he had with him.

Briefly he explained what he proposed to do and before the student arrived with the apparatus, they had placed the nurse in such a position that they were ready for the operation.

The next room which was unoccupied had been thrown open to us and there I waited with Reginald and Duncan, endeavoring to explain to them the mysteries of the new process of washing the blood.

The minutes lengthened into hours, as the blood of the poisoned girl coursed through its artificial channel, literally being washed of the toxin from the poisoned bracelet.

Would it succeed? It had saved the life of Buster. But would it bring back the unfortunate before us, long enough even for her to yield her secret and enable us to catch the real criminal. What if she died?

As Kennedy worked, the young men with me became more and more fascinated, watching him. The vividiffusion apparatus was now in full operation.

In the intervals when he left the apparatus in charge of the young ambulance surgeon Kennedy was looking over the room. In a trunk which was open he found several bundles of papers. As he ran his eye over them quickly, he selected some and stuffed them into his pocket, then went back to watch the working of the apparatus.

Reginald, who had been growing more and more nervous, at last asked if he might call up Betty to find out how his mother was.

He came back from the telephone, his face wrinkled.