In the midst of a series of unexplained accidents and mysterious coincidences, sixth-graders Calder, Petra, and Tommy lead their classmates in an attempt to keep Frank Lloyd Wright's famous Robie House from being demolished.

Invisible -- Murder in the classroom -- Life & art -- Find -- Tales from the tracks -- New pentominoes -- Fear it -- Ghastly face -- Bite -- Do not enter -- Haystack idea -- Three! -- Link -- One huge pattern -- Goldman knows -- Rear windows -- Part of the art -- Sacrilege -- Red Herrings -- After the storm -- New code -- Wright's fish -- Lie -- Horror -- In the boxes -- Silvery voice -- Triangle of gold -- Japanese garden -- Inside at night -- Net -- Three little birdies -- Lost and found -- Man in the window -- Summer in Hyde Park -- Wright story.