“I wonder if Doctor Leonard Thompson, whose signature is attached to this confession, is the famous specialist who now resides on upper Fifth Avenue?”

“We can easily find out by calling on him.”

“We will start for his house immediately.”

Carter put the papers into the inside pocket of his coat, and then he and Mr. Wright started for the house of the Fifth Avenue physician.

When the detective and his companion arrived at the palatial mansion they were shown into a small reception room in which a number of patients were seated.

Carter gave his card to the butler, requesting him to present it to his master and state that he desired to see the doctor on important business.

In a few minutes the butler returned and said that the doctor would see them.

Doctor Thompson was a man of fine physique and aristocratic bearing.

At first he acted rather coldly when the detective and Mr. Wright entered his private office. However, he invited them to be seated and asked what they desired.

“Were you ever house physician at Bellevue Hospital?” Carter inquired.