"That was not his real name," interrupted the officer. "He went under several names. Stuart is the one the police know him by. He was a professional diamond thief."

"No, no! I cannot believe it," protested the loyal little creature stoutly. "Why, he was all kindness to us. When my husband was ill he nursed him for a whole week, day and night. He gave toys to the children, did errands, and often brought us fruit or candy. Are you sure there is no mistake? Certainly we should know if he were a bad man."

"Alas, my good woman, the proofs we hold in our hands are so convincing as to leave not the slightest possibility for error. There were, you see, two Carltons—the kind, friendly gentleman you knew; and the clever, experienced criminal with whom the police were acquainted. Most of us are a combination of various selves. This man had two sharply contrasting individualities and unfortunately it was the baser of them that dominated. He has a long prison record behind him."

"Ciel!" The woman clasped her hands in horror. "But why?" exclaimed she. "He did not need to steal. He always had plenty of money."

"That was how he got it."

For a while she seemed too stunned to say more; then she whispered:

"And where is he now?"

"Serving a prison sentence for a crime in Chicago."

"It is terrible—terrible! Oh, my husband will be sad to hear this; and my sister too. Poor fellow! I can scarcely believe it. Suppose the neighbors were to hear we had been housing a burglar—they would not speak to us."

"No one will know unless you yourself tell them," the inspector answered.