Andrew Smith’s sequel to the spooky and unsettling young adult adventure The Marbury Lens is Passenger (Feiwel & Friends, $17.99). Best friends Jack and Conner can’t stay away from Marbury. It’s partly because of their obsession with this alternate world and the unresolved war that still wages there. But it’s also because forces in Marbury—including the darkest of the dark, who were not revealed in The Marbury Lens—are beckoning the boys back in order to save their friends . . . and themselves. Smith is the author of the novels Ghost Medicine, In the Path of Falling Objects, and Stick.