Osborne, Mary Pope <br/><br/>
Polar bears past bedtime 

 - New York :   Scholastic,  1998 
 - 71 p. :   ill.  
 - Magic tree house ;  #12 .
<br/><br/><label>ISBN: </label>9780590706384 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Bears--Juvenile fiction<br/>Magic--Juvenile fiction<br/>Tree houses--Juvenile fiction