Wright 3

The Wright 3 is a 2006 children's mystery novel written by Blue Balliett and illustrated by Brett Helquist. It was released in April 1, 2006, and is the sequel to Balliett's 2004 children's novel Chasing Vermeer. It chronicles how Calder, Petra, and Tommy strive to save the Robie House in their neighborhood, Hyde Park, Chicago. The underlying plot elements include 3-D pentominoes, Frank Lloyd Wright, the Robie House Fibonacci numbers, The Invisible Man, and mysterious occurrences. A sequel, The Calder Game, was published in 2008.