"So long as we have not done so, Mr. Morgan, you need not accuse yourself. We only know, so far, that the jewel for which Mr. Ashton was murdered has been found in your possession."
The significant way in which he uttered these words thrilled me with a vague sense of alarm. There upon the table, before Sergeant McQuade, lay Miss Temple's telegram. It was open, and I felt sure he had already read it. My mind seemed confused—my brain on fire. The Inspector turned to McQuade. "Sergeant," he said, "you have the handkerchief in question with you, I believe?"
McQuade nodded, then drew from his pocket a leather wallet, and, extracting the folded handkerchief from its recesses, spread it carefully upon the table. He then produced a magnifying glass from one of his pockets and requested me to examine the surface of the bit of cambric and lace. I did so, and observed that it was covered with minute particles of some green substances, some very small, others of considerable size. I did not at first realize what they were.
"Do you see anything?" asked the Inspector.
"Yes," I replied. "The handkerchief is full of fine green specks, but I cannot imagine what they are."
"They are bits of soap, Mr. Morgan," said the detective, as he folded up the handkerchief and replaced it in his wallet.
"Soap," I cried, more than ever mystified.
"Exactly!" The Inspector looked at me keenly. "Has it not occurred to you, Mr. Morgan, that in order to place the jewel inside the cake of soap, it was first necessary to cut it in two, and hollow out a space in the interior? Is it not also quite evident that anyone so hiding the jewel would perform this operation very carefully, so as to leave behind no traces, and that the bits of soap removed from the interior of the cake must have been carefully collected upon some object, this handkerchief, for instance, and subsequently thrown away, leaving the minute particles that you see still clinging to its surface?"
"Yes," I replied, dazed. "But who?"
"That, Mr. Morgan, is just what we are trying to find out. It hardly seems likely that Mr. Ashton would have gone to all this trouble, although it is possible, since he had reason, after his quarrel with Major Temple, to fear an attempt to gain possession of the jewel. If he did, how does it happen that he used Miss Temple's handkerchief for the purpose? He may of course have found it upon the floor and so utilized it, but it seems unlikely."