"He casually mentioned that he was executing a commission for Mr. Frederick Leighbourne."
"Do you know what the commission was?"
"No," replied Maria haughtily, "I do not."
"You saw Mr. Grent, I believe?"
"Yes; for some ten minutes or so."
"On business?"
"On private business," said Maria with emphasis.
"H'm! Would you mind explaining what that private business was about?"
"I mind very much."
"You refuse to explain?"