Crewe soon discovered, through overhearing a loud quarrel between his landlady and her daughter, that Mrs. Leaver's husband was alive, though dead to his wife for all practical purposes, inasmuch as he was serving a life's imprisonment for manslaughter. A fortnight after he had taken up his temporary quarters above the shop the woman was removed to the hospital suffering from the effects of a hard drinking bout, and died there. The girl disappeared, and the boy would have been turned out on the streets but for Crewe, who had taken a liking to him. Joe was self-reliant, alert, and precocious, like most London street boys, but in addition to these qualities he had a vein of imagination unusual in a lad of his upbringing and environment. He devoured the exciting feuilleton stories in the evening papers he vended, and spent his spare pennies at the cinema theatres in the vicinity of his poor home. His appreciation of the crude mysteries of the filmed detective drama amused the famous expert in the finer art of actual crime detection, until he discovered that the boy possessed natural gifts of intuition and observation, combined with penetration. Crewe grew interested in developing the boy's talent for detective work. When the lad's mother died Crewe decided to take him into his Holborn offices as messenger-boy. Crewe soon discovered that Joe had a useful gift for "shadowing" work, and his street training as a newspaper runner enabled him not only to follow a person through the thickest of London traffic, but to escape observation where a man might have been noticed and suspected. "Well, Joe," said Crewe, as the boy entered on the heels of Stork, "I have a job for you this morning. I want you to find the glove corresponding to this one." Crewe, having finished his examination of the glove, handed it to the boy, whose first act was to slip it on his left hand and move his fingers about to assure himself that they were in good working order in spite of being hidden. It was the first occasion on which Joe had worn a glove.