Sherry, Maureen. <br/><br/>
Walls within walls / 
Maureen Sherry ; illustrated by Adam Stower. 
 - 1st ed. 
 - New York :  Katherine Tegen Books,  c2010. 
 - 349 p. :  ill. ;  22 cm. 
<br/><br/> When the Smithfork family moves into a lavish Manhattan apartment building, they discover clues to a decades-old mystery hidden behind the walls of their new home. 
<br/><br/> Ages 8-12. 
<br/><br/><label>ISBN: </label>9780061767005 
<br/><br/><label>LCCN: </label>2010009494 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mystery and detective stories.<br/>Brothers and sisters--Fiction.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>New York (N.Y.)--Fiction.
<br/><br/><label>LC Class. No.: </label>PZ7.S5494  / Wal 2010 
<br/><br/><label>Dewey Class. No.: </label>[Fic]