He did not look fearfully round the room as if half expecting to see the shadow of Manfred's assassin creeping upon him. But he smiled in his own peculiar fashion as the door opened and a white-robed figure came in. It was Angela with her fine hair about her shoulders and a look of horror in her eyes.

"So you've found out all about it," Sir Clement said. "I'm sorry, because it will spoil your rest. How did you come to make the discovery?"

"I had just come in," Angela explained. "I let myself in with my latchkey. I did not come near you because I could hear that you were entertaining company, so I went straight to bed. Then I heard Hafid's cry, and I came to the head of the stairs where I could hear everything."

"You mean to say that you stood there and listened?"

"I couldn't help it. So far as I could judge there was an assassin in the house. Just for the moment I was far too frightened to move. That raving madman might have come for me next."

"Well, you can make your mind quite easy on that score. As you know, the whole house has been most thoroughly searched from top to bottom, and there is nobody here but the servants and ourselves now. If I were you I should keep out of it. Go to bed."

Sir Clement barked out the last few words, but Angela did not move.

"There will be an inquest, of course?" she asked.

"Oh, Lord, yes! The papers will reek of it, and half the reporters in London will look upon the place as a kind of public-house for the next week. Take my advice and keep out of it. You know nothing and you want to continue to know nothing, so to speak."

"But I am afraid that I know a great deal," Angela said slowly. "When I came in I was going into the conservatory to place a flower that I had given me to-night. It is a flower that I am likely to be interested in another time. And there I saw a strange man walking swiftly the same way. From his air and manner he was obviously doing wrong. My idea was to follow and stop him. And when I reached the conservatory, to my intense surprise, he was nowhere to be seen."