"by Carolyn Keene" <br/><br/>
The hidden staircase 

 -  New York : Grosset & Dunlap, [1987]  2002 
 - 182 
<br/><br/><label>ISBN: </label>0448095025 
<br/><br/><label>Dewey Class. No.: </label>F823  / .3960