Walls Within Walls

By Maureen Sherry

349 pages

After their father strikes it rich, the Smithfork kids discover that they don't like their new life: their Fifth Avenue apartment, their nanny, their lack of friends and their new schools.  Everything changes when they discover that their apartment, once owned by a multimillionaire, was designed to be a giant puzzle concealing the family fortune.   The treasure hunt takes them all over New York City, exploring history, poetry, landmarks and architecture along the way.  Grade 5.