Osborne, Mary Pope <br/><br/>
Polar Bears Past Bedtime 

 - New York  Random House  1998 
 - 71 p  illus  19/13/0,5 cm  Paperback 
 - Magic Tree House  12 .
<br/><br/> Their magic tree house takes Jack and Annie to the Arctic, where a polar bear leads them onto very thin ice. 
<br/><br/> Ages 6-9 
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<br/><br/><label>ISBN: </label>9780679883418 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Polar Bear--Fiction<br/>Arctic regions<br/>Time travel--Fiction
<br/><br/><label>Subjects--Index Terms: </label>chapter book 
<br/><br/><label>Index Terms--Genre/Form: </label><br/>IW (Science Fiction, Mythical, Fantasy)<br/>SU (Mystery, Horror, Adventure)<br/>HF (Historical Fiction)
<br/><br/><label>Dewey Class. No.: </label>813