“‘I would go,’ said she, trying hard, as it seemed to me, to speak calmly; ‘I would go. I should not stay here. There is no good for you to do.’

“‘But, madam,’ said I, ‘I have not yet done what I came for. I cannot possibly leave until I have seen the machine.’

“‘It is not worth your while to wait,’ she went on. ‘You can pass through the door; no one hinders.’ And then, seeing that I smiled and shook my head, she suddenly threw aside her constraint and made a step forward, with her hands wrung together. ‘For the love of Heaven!’ she whispered, ‘get away from here before it is too late!’

“But I am somewhat headstrong by nature, and the more ready to engage in an affair when there is some obstacle in the way. I thought of my fifty-guinea fee, of my wearisome journey, and of the unpleasant night which seemed to be before me. Was it all to go for nothing? Why should I slink away without having carried out my commission, and without the payment which was my due? This woman might, for all I knew, be a monomaniac. With a stout bearing, therefore, though her manner had shaken me more than I cared to confess, I still shook my head, and declared my intention of remaining where I was. She was about to renew her entreaties, when a door slammed overhead, and the sound of several footsteps were heard upon the stairs. She listened for an instant, threw up her hands with a despairing gesture, and vanished as suddenly and as noiselessly as she had come.

“The new-comers were Colonel Lysander Stark and a short, thick man with a chinchilla beard growing out of the creases of his double chin, who was introduced to me as Mr. Ferguson.

“‘This is my secretary and manager,’ said the colonel. ‘By-the-way, I was under the impression that I left this door shut just now. I fear that you have felt the draught.’

“‘On the contrary,’ said I, ‘I opened the door myself, because I felt the room to be a little close.’

“He shot one of his suspicious looks at me. ‘Perhaps we had better proceed to business, then,’ said he. ‘Mr. Ferguson and I will take you up to see the machine.’

“‘I had better put my hat on, I suppose.’

“‘Oh no, it is in the house.’