CHAPTER IV THE NAIL “My God!” Farrell exclaimed, stepping closer and pushing aside the gray hair, thus clearly revealing the awful truth. A flat-headed nail, the head rather more than a quarter of an inch in diameter, had been driven into the skull with such force that it showed merely as a metal disk. Having been hidden by the dead man’s hair, it had remained unnoticed until Moore’s quick eyes espied it. Farrell picked at it a little, but it was far too firmly fastened to be moved by his fingers. “What shall we do?” the Inspector asked, helplessly. “Shall we try to get Doctor Rogers back?” “No,” returned the Coroner, “he’s just starting on a long trip. Let him go. He could do nothing and it would be a pity to spoil his journey. His diagnosis of apoplexy was most natural in the circum

