Who stole Sassi Manoon? Ask Kelly Bram Nicholas IV, the world’s youngest mad scientist, who gets all his answers from Starnap, the seagoing computer. Or ask Jigger Jackson, the girl who wants to be a movie star so bad she’d sell somebody else’s body for the chance. Or ask Frank Ashford, the boy of 1,000 voices 1,000, none of them his own. Or ask Robby Creswel, the black man’s answer to Raffles,...