HE DIDN'T MEAN TO LOSE THAT
"Miffins, the book-keeper, tells me that you have lost the key of the safe, and he cannot get at the books."
"Yes, sir, one of them. You gave me two, you remember."
"Yes; I had duplicates made in case of accident. And the other?"
"Oh, sir, I took care of that. I was afraid I might lose one of them, you know."
"And is the other all right?"
"Yes, sir. I put it where there was no danger of it being lost. It is in the safe, sir!"