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 Wrights architectural masterpiece, the Robie House. Illustrations. nFrom the New York Times-bestselling team behind Chasing Vermeer comes another thought-provoking art mystery featuring Frank Lloyd Wrights Robie house--now in After Words paperback! nn 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 Wrights Robie House, and its up to the two junior sleuths to piece together the clues. Stir in the return of Calders friend Tommy (which creates a tense triangle), H.G. Wellss The Invisible Man, 3-D pentominoes, and the hunt for a coded message left behind by Wright, and the kids become tangled in a dangerous web in which life and art intermingle with death, deception, and surprise.