“Yes, but that is precisely where I began to feel sure that she was innocent,” replied Hanaud dryly.  “All the other footmarks had been so carefully scored and ploughed up that nothing could be made of them.  Yet those little ones remained so definite, so easily identified, and I began to wonder why these, too, had not been cut up and stamped over.  The murderers had taken, you see, an excess of precaution to throw the presumption of guilt upon Mlle. Celie rather than upon Vauquier.  However, there the footsteps were.  Mlle. Celie had sprung from the room as I described to Wethermill.  But I was puzzled.  Then in the room I found the torn-up sheet of notepaper with the words, ‘Je ne sais pas,’ in mademoiselle’s handwriting.  The words might have been spirit-writing, they might have meant anything.  I put them away in my mind.  But in the room the settee puzzled me.  And again I was troubled—­greatly troubled.”

“Yes, I saw that.”

“And not you alone,” said Hanaud, with a smile.  “Do you remember that loud cry Wethermill gave when we returned to the room and once more I stood before the settee?  Oh, he turned it off very well.  I had said that our criminals in France were not very gentle with their victims, and he pretended that it was in fear of what Mlle. Celie might be suffering which had torn that cry from his heart.  But it was not so.  He was afraid—­deadly afraid—­not for Mlle. Celie, but for himself.  He was afraid that I had understood what these cushions had to tell me.”

“What did they tell you?” asked Ricardo.

“You know now,” said Hanaud.  “They were two cushions, both indented, and indented in different ways.  The one at the head was irregularly indented—­something shaped had pressed upon it.  It might have been a face—­it might not; and there was a little brown stain which was fresh and which was blood.  The second cushion had two separate impressions, and between them the cushion was forced up in a thin ridge; and these impressions were more definite.  I measured the distance between the two cushions, and I found this:  that supposing—­and it was a large supposition—­the cushions had not been moved since those impressions were made, a girl of Mlle. Celie’s height lying stretched out upon the sofa would have her face pressing down upon one cushion and her feet and insteps upon the other.  Now, the impressions upon the second cushion and the thin ridge between them were just the impressions which might have been made by a pair of shoes held close together.  But that would not be a natural attitude for any one, and the mark upon the head cushion was very deep.  Supposing that my conjectures were true, then a woman would only lie like that because she was helpless, because she had been flung there, because she could not lift herself—­because, in a word, her hands were tied behind her back and her feet fastened together.  Well, then, follow this train of reasoning, my friend!  Suppose my