"Can you form the least idea as to who this friend, or rather this so-called friend is? Have you the least suspicion as to his identity?"
"I have not."
"Has your niece?"
"No."
"This letter would suggest that there is a scheme on foot to rob you."
"That is the suggestion that came to me when I first read the note."
"Have you any articles of special value in the house?"
"You are a detective."
"I am."
"I believe your identity and respectability are sufficiently well established for me to answer you frankly."