"And that beautiful microscope?" the man asked regretfully. "Has that gone, too?"

"Yes. The whole bag of tricks has been consumed. That's why I didn't come last night," Boyne said.

"Oh! the beautiful mike!" exclaimed the abnormal creature, as though to himself. "And it cost such a lot—oh, such a lot!"

"Don't trouble about the microscope, you fool!" cried Boyne roughly. "Just try and pull yourself together and save your own skin. Where are those tubes? I want them."

The lean man in the over-large suit ambled across the room, his head bent forward, for he was very round-shouldered, and going to an old leather bag in the corner, slowly unlocked it and drew out a thick cartridge envelope which contained something hard.

Boyne took it from him quickly, and tearing it open, took out two dark-blue tubes of glass, the corks of which were sealed with wax.

"Are they all right?" he asked harshly. "Can you guarantee them? Now don't tell me a lie," he added threateningly, "or it will be the worse for you. I had a good mind to give you over to the police when you came to Pont Street the other night. You deserved it—venturing out like that."

"I got to know where you were, and I had to come and see you," whined the ugly creature as he ambled back to his chair.

"Don't do it again! Remain in hiding. Keep close here. You are in comfortable quarters. Old Mrs. Sampson below is always silent as regards her lodgers. Lots of men who have had this room have hidden from the police till they found a way out of it. Take my advice, and do the same. But don't attempt to come round to Pont Street—for we don't want you there, understand that?"

And he put the little glass tubes, which contained fatal bacteria, back into their envelope and placed them carefully in his pocket.