“Officer, is Sixty-eighth Street your beat?”

“Yes; and what of it?”

“Do you know all the families that live on Sixty-eighth Street?”

“Most of them.”

“Do you know a family by the name of Rainforth?”

“Yes; I know there is such a family there. But what is that to you?”

“We are two of Nick Carter’s people,” said Chick.

He made that fact plain to the officer, who quickly changed his manner, and, from being suspicious, became confidential.

“Yes, I know that family Rainforth,” he said. “Rainforth is Colonel Rainforth, a rich man, living on his money. A widower, and pretty old.”

“Who lives in the house with him?”