“I must say I think the idea of refreshment would not enter the head of anyone who had the pleasure of your company here, Miss McLeod, unless you suggested it yourself.”

We laughed at the rather heavy compliment, and I went into the dining-room to fetch the decanters, syphons and glasses.

“I’ll help you to get them,” called Dennis, and followed me out of the room.

“Well?” I asked as soon as we reached the other room. “What do you make of it?”

“I’m not sure,” Dennis admitted. “I’m puzzled. I shouldn’t be surprised if he turned out to be a Government secret service man keeping an eye on Fuller-von-Guernstein, and that when he has quite made up his mind that the mystery of the green ray is connected with his own business he will show his hand.”

“Something of the same sort occurred to Garnesk,” I said. “Well, at present we’d better avoid suspicion and go back before he thinks we’re holding a committee meeting.”

So I led the way to the den. I was walking carefully and slowly, because I was unaccustomed to carrying trays of glasses and things, and consequently I made no noise. I pushed the door open with my shoulder, Dennis following with a couple of syphons, and as I did so I chanced to glance upwards.

In a large mirror which hung over the fireplace I saw the reflection of Hilderman’s face, knitted in a fierce frown, gazing intently at some object which was outside my view. Myra was talking, though what she was saying I did not notice. I went into the room and put the tray on the big table, and as I filled the glasses I looked round casually to see what Hilderman had been looking at. Lying on the sofa on which Myra was sitting was the copy of the Pictures, open at the page bearing the incriminating photograph!

I mixed Hilderman’s drink according to his instructions—for by this time he had entirely recovered his equanimity—and handed it to him. As I did so I happened to look in the direction of the small table beside him. Myra’s Japanese paper-knife was still there, but the point had been stuck more than an inch into the mahogany top of the table. I turned away quickly, with a laughing remark to Myra, which did not seem to raise any suspicion at the time, though I have no recollection now what it was I said.