Book excerpt: "On a dare from her fellow street urchins, 14-year-old Wiggins tries to pickpocket a strange old man. Not only is Wiggins unsuccessful, but the old man, who is actually Sherlock Holmes, takes the gold ring that was in Wiggins' pocket and leaves behind a note directing her where to go to get it back. When Wiggins goes to 221B Baker Street to retrieve the ring, she is shocked to find out how much Holmes knows about her based on a quick observation. After seeing Holmes use the ring to solve a case, Wiggins proposes to work as his assistant. Intrigued by her potential, Holmes agrees to begin training Wiggins on a trial basis. Wiggins and Sherlock must learn to trust each other as Wigging and her group of street urchins help him solve two dangerous mysteries: The Red Headed League and The Adventure of the Blue Carbuncle." -- Back cover.