"You would! Now I am going to ask you a direct question. I need not tell you the hour at which the unknown was murdered at Streatham because you know that as well as I do. Now since that time have you added to your collection an orchid of extraordinary interest?"
Frobisher gasped. He had not expected the question. He was like a man who suddenly sees before him a deep and yawning precipice in the path of flowers. And the chasm was so deep and yawning that he could not see to the bottom of it. He hesitated and stammered.
"I certainly bought a valuable orchid the same night," he admitted.
"Ah! Now we are getting on, indeed. The orchid you bought was unique!"
"Well, that is a fair description of it. Nothing like it has been seen before."
"An orchid the like of which has never been seen before! Come, this is very interesting. Can you tell us if the plant in question has any particular name?"
"It is called 'The Cardinal Moth,'" Frobisher admitted slowly. The words seemed to be dragged from him; he half wondered what had become of his voice. "It came originally from Koordstan."
"Stolen," the Counsel cried. "The orchid, sir, is unique. It was used to guard the Temple of Ghan. It is supposed to possess certain sinister qualities. Criminals who were sent into the place where the Moth hung never came out alive, they always died, as the two unhappy men whose cases we have under consideration perished. The sentence was to pluck a flower from the Cardinal Moth. The flowers were plucked, and when the great gates were thrown back the criminal was dead, strangled. Sir Clement, I presume that you knew all about this before you purchased the Cardinal Moth the other night."
"Every collector of intelligence knows the story," Frobisher admitted.
"So when the treasure came in your way you could not resist the temptation of purchase. Now, pray be careful. Did you not buy the Cardinal Moth about an hour or two, say, after the unknown was found murdered in that conservatory at Streatham?"