Jacquelyn

ARE YOU A GIFTED CHILD LOOKING FOR SPECIAL OPPORTUNITIES? Dozens of children respond to this peculiar ad in the newspaper and are then put through a series of mind-bending tests. (And you, dear listener, can test your wits right alongside them.) Only four children - Reynie, Kate, Sticky, and Constance - succeed. Their challenge: to go on a secret mission that only the most intelligent and inventive children could complete.

Enola Holmes, the much younger sister of Sherlock and Mycroft, owns a building in the heart of 19th-century London, a place she uses under pseudonyms to front for her investigative work. Employed there is a porter - Joddy, a young boy in a uniform festooned with buttons - whose even younger brother substitutes for him when he's sick. But Paddy disappears after one day at the job, and Enola Holmes is alerted to this by the still ill Joddy.