Chapter 6: The Tenth Clue

The Tenth Clue I “Do You Know … Emil Bonfils?” “Mr. Leopold Gantvoort is not at home,” the servant who opened the door said, “but his son, Mr. Charles, is—if you wish to see him.” “No. I had an appointment with Mr. Leopold Gantvoort for nine or a little after. It’s just nine now. No doubt he’ll be back soon. I’ll wait.” “Very well, sir.” He stepped aside for me to enter the house, took my overcoat and hat, guided me to a room on the second floor—Gantvoort’s library…