"Yet when he telephoned, you had gone out?"

"Yes."

"Why?"

"I will tell you," said Joan Carew. "I could not bear to keep the little diamond chain in my room."

For a moment even Hanaud was surprised. He had lost sight of that complication. Now he leaned forward anxiously; indeed, with a greater anxiety than he had yet shown in all this affair.

"I was terrified," continued Joan Carew. "I kept thinking: 'They must have found out by now. They will search everywhere.' I didn't reason. I lay in bed expecting to hear every moment a loud knocking on the door. Besides--the chain itself being there in my bedroom--her chain--the dead woman's chain--no, I couldn't endure it. I felt as if I had stolen it. Then my maid brought in my tea."

"You had locked it away?" cried Hanaud.

"Yes. My maid did not see it."

Joan Carew explained how she had risen, dressed, wrapped the chain in a pad of cotton-wool and enclosed it in an envelope. The envelope had not the stamp of the hotel upon it. It was a rather large envelope, one of a packet which she had bought in a crowded shop in Oxford Street on her way from Euston to the Semiramis. She had bought the envelopes of that particular size in order that when she sent her letter of introduction to the Director of the Opera at Covent Garden she might enclose with it a photograph.

"And to whom did you send it?" asked Mr. Ricardo.