Tracked by a Tattoo by Fergus Hume

Although Fanks quite expected this revelation, he was, nevertheless, rather astonished at its unexpected confirmation. From that bicycle ride of Hersham's to Taxton-on-Thames to thwart his designs on Anne Colmer, Fanks had deduced certain suspicions; the hesitation of the journalist had confirmed those suspicions. Frankly speaking, he had no reason to connect Hersham with the negro; but he had been satisfied from the evidence of Simeon Wagg that Caesar -- Dr. Binjoy's servant -- had not been away from the Surrey village on that fatal night. Failing the real negro someone must have personated the black man; from the behaviour of Hersham, Fanks thought he might be the person in question. His random shot had hit the bull's-eye; it was quite an accident that it had done so.

"I expected as much," said Fanks, again restoring the photograph; to his pocket-book. "I told you, Garth, that I was right to trust to my instincts. This discovery explains the extraordinary conduct of Hersham."