Synopsis: From the New York Times bestselling team behind Chasing Vermeer comes another thought-provoking art mystery--featuring Frank Lloyd Wright's Robie house! Spring semester at the Lab School in Hyde Park finds Petra and Calder drawn into another mystery when unexplainable accidents and ghostly happenings throw a spotlight on Frank Lloyd Wright's Robie House, and it's up to the two junior sleuths to piece together the clues. Stir in the return of…