Keene, Carolyn. <br/><br/>
The crooked banister / 
by Carolyn Keene. 
 - New York :  Grosset,  1971. 
 - 179 p. :  ill. ;  20 cm. 
 - Nancy Drew mystery stories ;  48 .
<br/><br/> While helping the police find the owner of a mysterious house with a crooked staircase and an unpredictable robot, Nancy Drew, girl detective, also helps capture a swindler. 
<br/><br/> 4-9.  4. 
<br/><br/><label>ISBN: </label>0448095483 
<br/><br/><label>LCCN: </label>77130336 /AC 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mystery fiction.
<br/><br/><label>LC Class. No.: </label>PZ7.K23  / Cr 
<br/><br/><label>Dewey Class. No.: </label>Fic