"Upstairs in the still-room," said the woman, quietly. "At about eight o'clock the murder took place, according to the doctor. I was with my girls--that is, Badoura, Parizade and Zobeide were in the still-room, and Peri Banou in the shop. My husband was also there. He went away, and then I came down to tell you at the door that Lady Branwin would stop for the night."

"She must have been dead then," muttered Audrey, shivering. "You heard no noise, or--"

"I heard nothing, neither did my husband or Badoura. I left Lady Branwin quite comfortable shortly before eight o'clock. The assassin must have opened the window and murdered her almost immediately after I left."

"But why was she murdered?" asked Shawe, insistently.

"I can't say, sir, no more than I can say how the assassin managed to enter the court. Why," added Madame Coralie, quickly, "so sure am I that the court cannot be entered that the windows of the bedrooms are never fastened. It would, therefore, not be difficult for the assassin to enter. I expect that he found Lady Branwin asleep, and--"

"So quickly after you left?" interrupted the inspector.

"I gave Lady Branwin a sleeping-draught," explained Madame Coralie, "as her nerves were bad and she could not rest. For the treatment which I intended to give her it was necessary that her nerves should be in better order."

Audrey nodded. "I remember," she said, gravely, "mamma was very much agitated when she came here, and very restless."

"Why?" asked Lanton, sharply.

"On account of her desire for this treatment, which she feared Madame Coralie would not give her. Mamma explained that to me. Then, of course, there were the diamonds--oh!"--Audrey started--"where are the diamonds?"