"Meantime," added Nick, "you will please take no action in the case, but leave it entirely to me."

"I will do so, sir."

"If you will leave me your city address, or call here again in a few days, I shall have something to report to you."

"I will call the day after to-morrow, Detective Carter," said Pylotte, promptly, too cunning to give Nick a fictitious address.

"Very well," said Nick. "Call in the evening. And now, Mr. Pylotte, we will bid you good-morning, and get to work at once upon the case."

Pylotte bowed very agreeably, taking his artificial diamonds from the table and replacing them in his pocket; and Nick then conducted him to the door, again assuring him that no efforts in his behalf should be spared.

Pylotte once more expressed his thanks, bowing and smiling as he descended the steps, and Nick closed the door and returned to the library.

"Well, Chick, the bag is open and the cat out," he cried, as he entered.

"Right you are, Nick."

"And a monstrous cat it is!"