There was a slight cry from the woman in the hall, and the detective pushed in and faced her.

“You?” cried the woman, falling back. “You said you would never bother me again.”

“That’s true, Clara, but this is for the last time. Who is your neighbor?”

“Ha! don’t you know?”

“If I did I wouldn’t ask you, would I?”

“Perhaps not. You want to find out something about them?”

“There are two, eh?”

“Yes; one just came home.”

“Which one, woman?”

“The one with the dust.”