Hummel in terror called into play every resource upon which, during forty years of practice, his tiny tentacles had fastened. Who shall say that while he made a show of enjoying himself nightly with his accustomed lightheartedness in the Tenderloin, he did not feel confident that in the end this peril would disappear like the others which had from time to time threatened him during his criminal career? But Hummel was fully aware of the tenacity of the man who had resolved to rid New York of his malign influence. His Nemesis was following him. In his dreams, if he ever dreamed, it probably took the shape of the square-shouldered District Attorney in the shadow of whose office building the little shyster practiced his profession. Had he been told that this Nemesis was in reality a jovial little man with a round, ruddy face and twinkling blue eyes he would have laughed as heartily as it was in his power to laugh. Yet such was the fact. A little man who looked less like a detective than a commercial traveler selling St. Peter's Oil or some other cheerful concoction, with manners as gentle and a voice as soft as a spring zephyr, who always took off his hat when he came into a business office, seemingly bashful to the point of self-effacement, was the one who snatched Charles F. Dodge from the borders of Mexico and held him in an iron grip when every influence upon which Hummel could call for aid, from crooked police officials, corrupt judges, and a gang of cutthroats under the guise of a sheriff's posse, were fighting for his release. Jesse Blocher is not employed in New York County, and for business reasons he does not wish his present address known. When he comes to New York he occasionally drops into the writer's office for a cigar and a friendly chat about old times. And as he sits there and talks so modestly and with such quiet humor about his adventures with the Texas Rangers among the cactus-studded plains of the Lone Star State, it is hard, even for one who knows the truth, to realize that this man is one of the greatest of detectives, or rather one of the most capable, resourceful, adroit, and quick-witted knights of adventure who ever set forth upon a seemingly impossible errand.