The girl bride's heart beat wildly. There was the imperilled honor of her father, guilty in intent in her mind now, as she whispered, "Is any one implicated?" "Listen!" said the young physician, rising and pacing the room. "We have a trap set for a humble tool of the real murderer, whom we believe to be hiding in Europe. We must act somewhat outside of the law. Witherspoon must go to the Secretary of State at Washington and get an alias extradition, so that we can later hold the real criminal. We must use force, fear, even innocent fraud. We need your money aid, your authority, and your secrecy." Miss Worthington's face lit up grandly. "There's my hand," firmly said Alice Worthington, springing up. "I have made arrangements with the executors for money. Spare nothing! Let us all act together. You shall be my brothers if you bring the cruel wretch to bay!" The young doctor bent over the girl's trembling hand and kissed it in reverence. Turning to Witherspoon, he simply said, "Call in McNerney." A flickering rosy red dyed the young heiress' cheeks as she gazed upon Atwater's nervous, elegant figure pacing to and fro in the dusky library. "Miss Alice," said the physician, "When I dismiss Witherspoon and the officer, it will be only to send them to take two persons into custody. From them we shall be able to find our secrets which will lead us to the murderer. "And to-morrow I will come alone, here, and tell you that Randall Clayton feared treachery; that he made a will, and left his little savings to one whom you will respect and honor. "Of all this, not a single word, even to Witherspoon, until the two suspected ones are secretly arrested. Not a human being must know of the arrest, as we will use either one of the arrested to guide me to the hiding place of the murderer. "I hope by to-morrow night that you will know all but the fact of the chief criminal's arrest! To effect his arrest, I myself must risk life and even my reputation. Witherspoon and I have toiled in secret since the disappearance of Clayton. "With you, we will win; without you, the murderer may escape. One hint of danger, and he would take flight and be lost in Europe's uncounted millions, perhaps in Asia." Alice Worthington's beaming eyes told of her new pledge of secrecy, as she stood, a beautiful Peri, finger on lip, while Witherspoon brought the stalwart McNerney into the library. The young officer, in plain, dark clothes, with severely shaven lip, was the ideal of a resolute young Irish priest, saving his Roman collar. But his steady eye kindled as Witherspoon tersely recounted to the astonished heiress the discovery of the pocketbook, the picture label, the secret visits to the deserted mansion, No. 192 Layte Street, and the results of all his private researches. The policeman sprang to his feet as the lawyer logically recounted his casual visits to the Newport Art Gallery, on finding a similar Danube picture in the window.