Warner, Gertrude Chandler <br/><br/>
The disappearing staircase mystery / 
y Gertrude Chandler Warner. 
 - 1st ed. 
 - Morton Grove, IL :  Albert Whitman & Co,  2001. 
 - 115p. 
 - The Boxcar Children .
<br/><br/><label>ISBN: </label>080755491X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mystery and detective stories.