"Why did you kill Manfred?"

"My dear fellow, I didn't kill Manfred. You think he has been murdered in the ordinary sense of the word. Manfred has not been murdered, and nobody will ever be hanged for the crime. That you may take my word for. It is the vengeance of the Crimson Moth, death by visitation of God; call it what you will. And it might have been yourself."

Frobisher's whole manner had changed, his eyes were gleaming evilly as he hissed the last words warningly in Lefroy's ear. The latter changed colour slightly.

"I don't understand what you mean," he stammered.

"And yet you are not usually slow at understanding. I repeat that it might have been yourself. If you had attempted the raid of the Cardinal Moth, instead of Manfred, you would have been lying at the present moment with your head on Brownsmith's knees, and the mark of the beast about your throat."

"And if I tell those fellows yonder what you say?"

"You are at liberty to say anything you please. But you are not going to say anything, my dear Lefroy; you are too fine a player for that. You are going to wait patiently for your next innings. Come back to the others. And perhaps I had better lock this door."

Lefroy, like a wise man, accepted the inevitable. But the rest of the party were no longer in the orchid-house. They had carried the dead man to the back dining-room, where they had laid him out on a couch. Frobisher rang up the nearest police-station on the telephone with the request that an inspector should be sent for at once.

"By gad, this is a dreadful thing, don't you know!" Saltaur said with a shudder. "Fancy that poor fellow being murdered whilst we were wrangling in the dining-room. I suppose there is no doubt that it is murder, doctor?"

"Not the shadow of a doubt about it," Sir James replied. "Poor Manfred must have been admiring the flowers when the assassin stepped behind him and threw that coarse cloth over his head. A knee could be inserted on his spine, and the head forced backwards. The cloth must have been twisted with tremendous force. It is quite a novel kind of murder for England."