Carter and Opal heard him on the stairs, and in a few moments they heard a door shut overhead.

Long before morning a policeman stood guard over the dead millionaire’s mansion.

The night passed slowly.

New York was getting ready to awake to the solution of another murder mystery and another crime.

The detective was making the last move in the office of the chief of police, who had listened to the story of his last trail.

George Richmond lay in the station-house cell fast asleep, just as if he had never been concerned in the plot to rob Perry Lamont, the millionaire, with the aid of his scapegrace son.

The morning broke.

Carter went to the Lamont mansion.

Upon parting the night before Opal had pledged her honor that she would greet him when he came again.

He entered the house, speaking first to the guardian at the door, who assured him that all was well, and then he entered the parlor.